Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (141 commits)
  USB: mct_u232: fix broken close
  USB: gadget: amd5536udc.c: fix error path
  USB: imx21-hcd - fix off by one resource size calculation
  usb: gadget: fix Kconfig warning
  usb: r8a66597-udc: Add processing when USB was removed.
  mxc_udc: add workaround for ENGcm09152 for i.MX35
  USB: ftdi_sio: add device ids for ScienceScope
  USB: musb: AM35x: Workaround for fifo read issue
  USB: musb: add musb support for AM35x
  USB: AM35x: Add musb support
  usb: Fix linker errors with CONFIG_PM=n
  USB: ohci-sh - use resource_size instead of defining its own resource_len macro
  USB: isp1362-hcd - use resource_size instead of defining its own resource_len macro
  USB: isp116x-hcd - use resource_size instead of defining its own resource_len macro
  USB: xhci: Fix compile error when CONFIG_PM=n
  USB: accept some invalid ep0-maxpacket values
  USB: xHCI: PCI power management implementation
  USB: xHCI: bus power management implementation
  USB: xHCI: port remote wakeup implementation
  USB: xHCI: port power management implementation
  ...

Manually fix up (non-data) conflict: the SCSI merge gad renamed the
'hw_sector_size' member to 'physical_block_size', and the USB tree
brought a new use of it.

7 files changed, 944 insertions, 351 deletions

diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 55660ea..1bfcd02 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -231,3 +231,16 @@ config USB_ISIGHTFW
 	  driver beforehand. Tools for doing so are available at
 	  http://bersace03.free.fr
 
+config USB_YUREX
+	tristate "USB YUREX driver support"
+	depends on USB
+	help
+	  Say Y here if you want to connect a YUREX to your computer's
+	  USB port. The YUREX is a leg-shakes sensor. See
+	  <http://bbu.kayac.com/en/> for further information.
+	  This driver supports read/write of leg-shakes counter and
+	  fasync for the counter update via a device file /dev/yurex*.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called yurex.
+
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 717703e..796ce7eb 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -3,28 +3,27 @@
 # (the ones that don't fit into any other categories)
 #
 
-obj-$(CONFIG_USB_ADUTUX)	+= adutux.o
-obj-$(CONFIG_USB_APPLEDISPLAY)	+= appledisplay.o
-obj-$(CONFIG_USB_CYPRESS_CY7C63)+= cypress_cy7c63.o
-obj-$(CONFIG_USB_CYTHERM)	+= cytherm.o
-obj-$(CONFIG_USB_EMI26)		+= emi26.o
-obj-$(CONFIG_USB_EMI62)		+= emi62.o
-obj-$(CONFIG_USB_FTDI_ELAN)	+= ftdi-elan.o
-obj-$(CONFIG_USB_IDMOUSE)	+= idmouse.o
-obj-$(CONFIG_USB_IOWARRIOR)	+= iowarrior.o
-obj-$(CONFIG_USB_ISIGHTFW)	+= isight_firmware.o
-obj-$(CONFIG_USB_LCD)		+= usblcd.o
-obj-$(CONFIG_USB_LD)		+= ldusb.o
-obj-$(CONFIG_USB_LED)		+= usbled.o
-obj-$(CONFIG_USB_LEGOTOWER)	+= legousbtower.o
-obj-$(CONFIG_USB_RIO500)	+= rio500.o
-obj-$(CONFIG_USB_TEST)		+= usbtest.o
-obj-$(CONFIG_USB_TRANCEVIBRATOR)	+= trancevibrator.o
-obj-$(CONFIG_USB_USS720)	+= uss720.o
-obj-$(CONFIG_USB_SEVSEG)	+= usbsevseg.o
+ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
 
-obj-$(CONFIG_USB_SISUSBVGA)	+= sisusbvga/
+obj-$(CONFIG_USB_ADUTUX)		+= adutux.o
+obj-$(CONFIG_USB_APPLEDISPLAY)		+= appledisplay.o
+obj-$(CONFIG_USB_CYPRESS_CY7C63)	+= cypress_cy7c63.o
+obj-$(CONFIG_USB_CYTHERM)		+= cytherm.o
+obj-$(CONFIG_USB_EMI26)			+= emi26.o
+obj-$(CONFIG_USB_EMI62)			+= emi62.o
+obj-$(CONFIG_USB_FTDI_ELAN)		+= ftdi-elan.o
+obj-$(CONFIG_USB_IDMOUSE)		+= idmouse.o
+obj-$(CONFIG_USB_IOWARRIOR)		+= iowarrior.o
+obj-$(CONFIG_USB_ISIGHTFW)		+= isight_firmware.o
+obj-$(CONFIG_USB_LCD)			+= usblcd.o
+obj-$(CONFIG_USB_LD)			+= ldusb.o
+obj-$(CONFIG_USB_LED)			+= usbled.o
+obj-$(CONFIG_USB_LEGOTOWER)		+= legousbtower.o
+obj-$(CONFIG_USB_RIO500)		+= rio500.o
+obj-$(CONFIG_USB_TEST)			+= usbtest.o
+obj-$(CONFIG_USB_TRANCEVIBRATOR)	+= trancevibrator.o
+obj-$(CONFIG_USB_USS720)		+= uss720.o
+obj-$(CONFIG_USB_SEVSEG)		+= usbsevseg.o
+obj-$(CONFIG_USB_YUREX)			+= yurex.o
 
-ifeq ($(CONFIG_USB_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
+obj-$(CONFIG_USB_SISUSBVGA)		+= sisusbvga/
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index aecf380..c8eec9c 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -2769,7 +2769,7 @@ static int ftdi_elan_probe(struct usb_interface *interface,
         ftdi->sequence_num = ++ftdi_instances;
         mutex_unlock(&ftdi_module_lock);
         ftdi_elan_init_kref(ftdi);
-        init_MUTEX(&ftdi->sw_lock);
+	sema_init(&ftdi->sw_lock, 1);
         ftdi->udev = usb_get_dev(interface_to_usbdev(interface));
         ftdi->interface = interface;
         mutex_init(&ftdi->u132_lock);
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 9b50db2..3756641 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -374,7 +374,7 @@ static ssize_t iowarrior_write(struct file *file,
 	case USB_DEVICE_ID_CODEMERCS_IOWPV2:
 	case USB_DEVICE_ID_CODEMERCS_IOW40:
 		/* IOW24 and IOW40 use a synchronous call */
-		buf = kmalloc(8, GFP_KERNEL);	/* 8 bytes are enough for both products */
+		buf = kmalloc(count, GFP_KERNEL);
 		if (!buf) {
 			retval = -ENOMEM;
 			goto exit;
diff --git a/drivers/usb/misc/sisusbvga/Makefile b/drivers/usb/misc/sisusbvga/Makefile
index 7f934cf..3142476 100644
--- a/drivers/usb/misc/sisusbvga/Makefile
+++ b/drivers/usb/misc/sisusbvga/Makefile
@@ -4,5 +4,4 @@
 
 obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga.o
 
-sisusbvga-objs := sisusb.o sisusb_init.o sisusb_con.o
-
+sisusbvga-y := sisusb.o sisusb_init.o sisusb_con.o
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index eef370e..a35b427 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -13,17 +13,16 @@
 
 /*-------------------------------------------------------------------------*/
 
-// FIXME make these public somewhere; usbdevfs.h?
-//
+/* FIXME make these public somewhere; usbdevfs.h? */
 struct usbtest_param {
-	// inputs
+	/* inputs */
 	unsigned		test_num;	/* 0..(TEST_CASES-1) */
 	unsigned		iterations;
 	unsigned		length;
 	unsigned		vary;
 	unsigned		sglen;
 
-	// outputs
+	/* outputs */
 	struct timeval		duration;
 };
 #define USBTEST_REQUEST	_IOWR('U', 100, struct usbtest_param)
@@ -45,9 +44,9 @@ struct usbtest_info {
 	const char		*name;
 	u8			ep_in;		/* bulk/intr source */
 	u8			ep_out;		/* bulk/intr sink */
-	unsigned		autoconf : 1;
-	unsigned		ctrl_out : 1;
-	unsigned		iso : 1;	/* try iso in/out */
+	unsigned		autoconf:1;
+	unsigned		ctrl_out:1;
+	unsigned		iso:1;		/* try iso in/out */
 	int			alt;
 };
 
@@ -71,9 +70,9 @@ struct usbtest_dev {
 	u8			*buf;
 };
 
-static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
+static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
 {
-	return interface_to_usbdev (test->intf);
+	return interface_to_usbdev(test->intf);
 }
 
 /* set up all urbs so they can be used with either bulk or interrupt */
@@ -87,7 +86,7 @@ static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
 /*-------------------------------------------------------------------------*/
 
 static int
-get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
+get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
 {
 	int				tmp;
 	struct usb_host_interface	*alt;
@@ -115,7 +114,7 @@ get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
 			case USB_ENDPOINT_XFER_ISOC:
 				if (dev->info->iso)
 					goto try_iso;
-				// FALLTHROUGH
+				/* FALLTHROUGH */
 			default:
 				continue;
 			}
@@ -142,9 +141,9 @@ try_iso:
 	return -EINVAL;
 
 found:
-	udev = testdev_to_usbdev (dev);
+	udev = testdev_to_usbdev(dev);
 	if (alt->desc.bAlternateSetting != 0) {
-		tmp = usb_set_interface (udev,
+		tmp = usb_set_interface(udev,
 				alt->desc.bInterfaceNumber,
 				alt->desc.bAlternateSetting);
 		if (tmp < 0)
@@ -152,21 +151,21 @@ found:
 	}
 
 	if (in) {
-		dev->in_pipe = usb_rcvbulkpipe (udev,
+		dev->in_pipe = usb_rcvbulkpipe(udev,
 			in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-		dev->out_pipe = usb_sndbulkpipe (udev,
+		dev->out_pipe = usb_sndbulkpipe(udev,
 			out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
 	}
 	if (iso_in) {
 		dev->iso_in = &iso_in->desc;
-		dev->in_iso_pipe = usb_rcvisocpipe (udev,
+		dev->in_iso_pipe = usb_rcvisocpipe(udev,
 				iso_in->desc.bEndpointAddress
 					& USB_ENDPOINT_NUMBER_MASK);
 	}
 
 	if (iso_out) {
 		dev->iso_out = &iso_out->desc;
-		dev->out_iso_pipe = usb_sndisocpipe (udev,
+		dev->out_iso_pipe = usb_sndisocpipe(udev,
 				iso_out->desc.bEndpointAddress
 					& USB_ENDPOINT_NUMBER_MASK);
 	}
@@ -182,12 +181,12 @@ found:
  * them with non-zero test data (or test for it) when appropriate.
  */
 
-static void simple_callback (struct urb *urb)
+static void simple_callback(struct urb *urb)
 {
 	complete(urb->context);
 }
 
-static struct urb *simple_alloc_urb (
+static struct urb *simple_alloc_urb(
 	struct usb_device	*udev,
 	int			pipe,
 	unsigned long		bytes
@@ -195,32 +194,32 @@ static struct urb *simple_alloc_urb (
 {
 	struct urb		*urb;
 
-	urb = usb_alloc_urb (0, GFP_KERNEL);
+	urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!urb)
 		return urb;
-	usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
+	usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, simple_callback, NULL);
 	urb->interval = (udev->speed == USB_SPEED_HIGH)
 			? (INTERRUPT_RATE << 3)
 			: INTERRUPT_RATE;
 	urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
-	if (usb_pipein (pipe))
+	if (usb_pipein(pipe))
 		urb->transfer_flags |= URB_SHORT_NOT_OK;
-	urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
+	urb->transfer_buffer = usb_alloc_coherent(udev, bytes, GFP_KERNEL,
 			&urb->transfer_dma);
 	if (!urb->transfer_buffer) {
-		usb_free_urb (urb);
+		usb_free_urb(urb);
 		urb = NULL;
 	} else
-		memset (urb->transfer_buffer, 0, bytes);
+		memset(urb->transfer_buffer, 0, bytes);
 	return urb;
 }
 
-static unsigned pattern = 0;
+static unsigned pattern;
 static unsigned mod_pattern;
 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
 
-static inline void simple_fill_buf (struct urb *urb)
+static inline void simple_fill_buf(struct urb *urb)
 {
 	unsigned	i;
 	u8		*buf = urb->transfer_buffer;
@@ -228,9 +227,9 @@ static inline void simple_fill_buf (struct urb *urb)
 
 	switch (pattern) {
 	default:
-		// FALLTHROUGH
+		/* FALLTHROUGH */
 	case 0:
-		memset (buf, 0, len);
+		memset(buf, 0, len);
 		break;
 	case 1:			/* mod63 */
 		for (i = 0; i < len; i++)
@@ -273,14 +272,14 @@ static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
 	return 0;
 }
 
-static void simple_free_urb (struct urb *urb)
+static void simple_free_urb(struct urb *urb)
 {
 	usb_free_coherent(urb->dev, urb->transfer_buffer_length,
 			  urb->transfer_buffer, urb->transfer_dma);
-	usb_free_urb (urb);
+	usb_free_urb(urb);
 }
 
-static int simple_io (
+static int simple_io(
 	struct usbtest_dev	*tdev,
 	struct urb		*urb,
 	int			iterations,
@@ -296,17 +295,18 @@ static int simple_io (
 
 	urb->context = &completion;
 	while (retval == 0 && iterations-- > 0) {
-		init_completion (&completion);
-		if (usb_pipeout (urb->pipe))
-			simple_fill_buf (urb);
-		if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
+		init_completion(&completion);
+		if (usb_pipeout(urb->pipe))
+			simple_fill_buf(urb);
+		retval = usb_submit_urb(urb, GFP_KERNEL);
+		if (retval != 0)
 			break;
 
 		/* NOTE:  no timeouts; can't be broken out of by interrupt */
-		wait_for_completion (&completion);
+		wait_for_completion(&completion);
 		retval = urb->status;
 		urb->dev = udev;
-		if (retval == 0 && usb_pipein (urb->pipe))
+		if (retval == 0 && usb_pipein(urb->pipe))
 			retval = simple_check_buf(tdev, urb);
 
 		if (vary) {
@@ -337,7 +337,7 @@ static int simple_io (
  * Yes, this also tests the scatterlist primitives.
  */
 
-static void free_sglist (struct scatterlist *sg, int nents)
+static void free_sglist(struct scatterlist *sg, int nents)
 {
 	unsigned		i;
 
@@ -346,19 +346,19 @@ static void free_sglist (struct scatterlist *sg, int nents)
 	for (i = 0; i < nents; i++) {
 		if (!sg_page(&sg[i]))
 			continue;
-		kfree (sg_virt(&sg[i]));
+		kfree(sg_virt(&sg[i]));
 	}
-	kfree (sg);
+	kfree(sg);
 }
 
 static struct scatterlist *
-alloc_sglist (int nents, int max, int vary)
+alloc_sglist(int nents, int max, int vary)
 {
 	struct scatterlist	*sg;
 	unsigned		i;
 	unsigned		size = max;
 
-	sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
+	sg = kmalloc(nents * sizeof *sg, GFP_KERNEL);
 	if (!sg)
 		return NULL;
 	sg_init_table(sg, nents);
@@ -367,9 +367,9 @@ alloc_sglist (int nents, int max, int vary)
 		char		*buf;
 		unsigned	j;
 
-		buf = kzalloc (size, GFP_KERNEL);
+		buf = kzalloc(size, GFP_KERNEL);
 		if (!buf) {
-			free_sglist (sg, i);
+			free_sglist(sg, i);
 			return NULL;
 		}
 
@@ -397,7 +397,7 @@ alloc_sglist (int nents, int max, int vary)
 	return sg;
 }
 
-static int perform_sglist (
+static int perform_sglist(
 	struct usbtest_dev	*tdev,
 	unsigned		iterations,
 	int			pipe,
@@ -410,7 +410,7 @@ static int perform_sglist (
 	int			retval = 0;
 
 	while (retval == 0 && iterations-- > 0) {
-		retval = usb_sg_init (req, udev, pipe,
+		retval = usb_sg_init(req, udev, pipe,
 				(udev->speed == USB_SPEED_HIGH)
 					? (INTERRUPT_RATE << 3)
 					: INTERRUPT_RATE,
@@ -418,7 +418,7 @@ static int perform_sglist (
 
 		if (retval)
 			break;
-		usb_sg_wait (req);
+		usb_sg_wait(req);
 		retval = req->status;
 
 		/* FIXME check resulting data pattern */
@@ -426,9 +426,9 @@ static int perform_sglist (
 		/* FIXME if endpoint halted, clear halt (and log) */
 	}
 
-	// FIXME for unlink or fault handling tests, don't report
-	// failure if retval is as we expected ...
-
+	/* FIXME for unlink or fault handling tests, don't report
+	 * failure if retval is as we expected ...
+	 */
 	if (retval)
 		ERROR(tdev, "perform_sglist failed, "
 				"iterations left %d, status %d\n",
@@ -452,31 +452,31 @@ static int perform_sglist (
  */
 
 static unsigned realworld = 1;
-module_param (realworld, uint, 0);
-MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
+module_param(realworld, uint, 0);
+MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
 
-static int get_altsetting (struct usbtest_dev *dev)
+static int get_altsetting(struct usbtest_dev *dev)
 {
 	struct usb_interface	*iface = dev->intf;
-	struct usb_device	*udev = interface_to_usbdev (iface);
+	struct usb_device	*udev = interface_to_usbdev(iface);
 	int			retval;
 
-	retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
+	retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 			USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
-			0, iface->altsetting [0].desc.bInterfaceNumber,
+			0, iface->altsetting[0].desc.bInterfaceNumber,
 			dev->buf, 1, USB_CTRL_GET_TIMEOUT);
 	switch (retval) {
 	case 1:
-		return dev->buf [0];
+		return dev->buf[0];
 	case 0:
 		retval = -ERANGE;
-		// FALLTHROUGH
+		/* FALLTHROUGH */
 	default:
 		return retval;
 	}
 }
 
-static int set_altsetting (struct usbtest_dev *dev, int alternate)
+static int set_altsetting(struct usbtest_dev *dev, int alternate)
 {
 	struct usb_interface		*iface = dev->intf;
 	struct usb_device		*udev;
@@ -484,9 +484,9 @@ static int set_altsetting (struct usbtest_dev *dev, int alternate)
 	if (alternate < 0 || alternate >= 256)
 		return -EINVAL;
 
-	udev = interface_to_usbdev (iface);
-	return usb_set_interface (udev,
-			iface->altsetting [0].desc.bInterfaceNumber,
+	udev = interface_to_usbdev(iface);
+	return usb_set_interface(udev,
+			iface->altsetting[0].desc.bInterfaceNumber,
 			alternate);
 }
 
@@ -519,9 +519,9 @@ static int is_good_config(struct usbtest_dev *tdev, int len)
 		return 0;
 	}
 
-	if (le16_to_cpu(config->wTotalLength) == len)		/* read it all */
+	if (le16_to_cpu(config->wTotalLength) == len)	/* read it all */
 		return 1;
-	if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE)		/* max partial read */
+	if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE)	/* max partial read */
 		return 1;
 	ERROR(tdev, "bogus config descriptor read size\n");
 	return 0;
@@ -542,10 +542,10 @@ static int is_good_config(struct usbtest_dev *tdev, int len)
  * to see if usbcore, hcd, and device all behave right.  such testing would
  * involve varied read sizes and other operation sequences.
  */
-static int ch9_postconfig (struct usbtest_dev *dev)
+static int ch9_postconfig(struct usbtest_dev *dev)
 {
 	struct usb_interface	*iface = dev->intf;
-	struct usb_device	*udev = interface_to_usbdev (iface);
+	struct usb_device	*udev = interface_to_usbdev(iface);
 	int			i, alt, retval;
 
 	/* [9.2.3] if there's more than one altsetting, we need to be able to
@@ -554,7 +554,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 	for (i = 0; i < iface->num_altsetting; i++) {
 
 		/* 9.2.3 constrains the range here */
-		alt = iface->altsetting [i].desc.bAlternateSetting;
+		alt = iface->altsetting[i].desc.bAlternateSetting;
 		if (alt < 0 || alt >= iface->num_altsetting) {
 			dev_err(&iface->dev,
 					"invalid alt [%d].bAltSetting = %d\n",
@@ -566,7 +566,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 			continue;
 
 		/* [9.4.10] set_interface */
-		retval = set_altsetting (dev, alt);
+		retval = set_altsetting(dev, alt);
 		if (retval) {
 			dev_err(&iface->dev, "can't set_interface = %d, %d\n",
 					alt, retval);
@@ -574,7 +574,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 		}
 
 		/* [9.4.4] get_interface always works */
-		retval = get_altsetting (dev);
+		retval = get_altsetting(dev);
 		if (retval != alt) {
 			dev_err(&iface->dev, "get alt should be %d, was %d\n",
 					alt, retval);
@@ -591,11 +591,11 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 		 * ... although some cheap devices (like one TI Hub I've got)
 		 * won't return config descriptors except before set_config.
 		 */
-		retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
+		retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				USB_REQ_GET_CONFIGURATION,
 				USB_DIR_IN | USB_RECIP_DEVICE,
 				0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
-		if (retval != 1 || dev->buf [0] != expected) {
+		if (retval != 1 || dev->buf[0] != expected) {
 			dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
 				retval, dev->buf[0], expected);
 			return (retval < 0) ? retval : -EDOM;
@@ -603,7 +603,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 	}
 
 	/* there's always [9.4.3] a device descriptor [9.6.1] */
-	retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
+	retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
 			dev->buf, sizeof udev->descriptor);
 	if (retval != sizeof udev->descriptor) {
 		dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
@@ -612,7 +612,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 
 	/* there's always [9.4.3] at least one config descriptor [9.6.3] */
 	for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
-		retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
+		retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
 				dev->buf, TBUF_SIZE);
 		if (!is_good_config(dev, retval)) {
 			dev_err(&iface->dev,
@@ -621,18 +621,19 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 			return (retval < 0) ? retval : -EDOM;
 		}
 
-		// FIXME cross-checking udev->config[i] to make sure usbcore
-		// parsed it right (etc) would be good testing paranoia
+		/* FIXME cross-checking udev->config[i] to make sure usbcore
+		 * parsed it right (etc) would be good testing paranoia
+		 */
 	}
 
 	/* and sometimes [9.2.6.6] speed dependent descriptors */
 	if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
-		struct usb_qualifier_descriptor		*d = NULL;
+		struct usb_qualifier_descriptor *d = NULL;
 
 		/* device qualifier [9.6.2] */
-		retval = usb_get_descriptor (udev,
+		retval = usb_get_descriptor(udev,
 				USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
-				sizeof (struct usb_qualifier_descriptor));
+				sizeof(struct usb_qualifier_descriptor));
 		if (retval == -EPIPE) {
 			if (udev->speed == USB_SPEED_HIGH) {
 				dev_err(&iface->dev,
@@ -641,7 +642,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 				return (retval < 0) ? retval : -EDOM;
 			}
 			/* usb2.0 but not high-speed capable; fine */
-		} else if (retval != sizeof (struct usb_qualifier_descriptor)) {
+		} else if (retval != sizeof(struct usb_qualifier_descriptor)) {
 			dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
 			return (retval < 0) ? retval : -EDOM;
 		} else
@@ -651,7 +652,7 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 		if (d) {
 			unsigned max = d->bNumConfigurations;
 			for (i = 0; i < max; i++) {
-				retval = usb_get_descriptor (udev,
+				retval = usb_get_descriptor(udev,
 					USB_DT_OTHER_SPEED_CONFIG, i,
 					dev->buf, TBUF_SIZE);
 				if (!is_good_config(dev, retval)) {
@@ -663,25 +664,26 @@ static int ch9_postconfig (struct usbtest_dev *dev)
 			}
 		}
 	}
-	// FIXME fetch strings from at least the device descriptor
+	/* FIXME fetch strings from at least the device descriptor */
 
 	/* [9.4.5] get_status always works */
-	retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
+	retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
 	if (retval != 2) {
 		dev_err(&iface->dev, "get dev status --> %d\n", retval);
 		return (retval < 0) ? retval : -EDOM;
 	}
 
-	// FIXME configuration.bmAttributes says if we could try to set/clear
-	// the device's remote wakeup feature ... if we can, test that here
+	/* FIXME configuration.bmAttributes says if we could try to set/clear
+	 * the device's remote wakeup feature ... if we can, test that here
+	 */
 
-	retval = usb_get_status (udev, USB_RECIP_INTERFACE,
-			iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
+	retval = usb_get_status(udev, USB_RECIP_INTERFACE,
+			iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
 	if (retval != 2) {
 		dev_err(&iface->dev, "get interface status --> %d\n", retval);
 		return (retval < 0) ? retval : -EDOM;
 	}
-	// FIXME get status for each endpoint in the interface
+	/* FIXME get status for each endpoint in the interface */
 
 	return 0;
 }
@@ -717,7 +719,7 @@ struct subcase {
 	int			expected;
 };
 
-static void ctrl_complete (struct urb *urb)
+static void ctrl_complete(struct urb *urb)
 {
 	struct ctrl_ctx		*ctx = urb->context;
 	struct usb_ctrlrequest	*reqp;
@@ -725,9 +727,9 @@ static void ctrl_complete (struct urb *urb)
 	int			status = urb->status;
 
 	reqp = (struct usb_ctrlrequest *)urb->setup_packet;
-	subcase = container_of (reqp, struct subcase, setup);
+	subcase = container_of(reqp, struct subcase, setup);
 
-	spin_lock (&ctx->lock);
+	spin_lock(&ctx->lock);
 	ctx->count--;
 	ctx->pending--;
 
@@ -787,14 +789,14 @@ error:
 
 			/* unlink whatever's still pending */
 			for (i = 1; i < ctx->param->sglen; i++) {
-				struct urb	*u = ctx->urb [
-						(i + subcase->number)
-						% ctx->param->sglen];
+				struct urb *u = ctx->urb[
+							(i + subcase->number)
+							% ctx->param->sglen];
 
 				if (u == urb || !u->dev)
 					continue;
 				spin_unlock(&ctx->lock);
-				status = usb_unlink_urb (u);
+				status = usb_unlink_urb(u);
 				spin_lock(&ctx->lock);
 				switch (status) {
 				case -EINPROGRESS:
@@ -812,7 +814,8 @@ error:
 
 	/* resubmit if we need to, else mark this as done */
 	if ((status == 0) && (ctx->pending < ctx->count)) {
-		if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
+		status = usb_submit_urb(urb, GFP_ATOMIC);
+		if (status != 0) {
 			ERROR(ctx->dev,
 				"can't resubmit ctrl %02x.%02x, err %d\n",
 				reqp->bRequestType, reqp->bRequest, status);
@@ -824,21 +827,21 @@ error:
 
 	/* signal completion when nothing's queued */
 	if (ctx->pending == 0)
-		complete (&ctx->complete);
-	spin_unlock (&ctx->lock);
+		complete(&ctx->complete);
+	spin_unlock(&ctx->lock);
 }
 
 static int
-test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
+test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
 {
-	struct usb_device	*udev = testdev_to_usbdev (dev);
+	struct usb_device	*udev = testdev_to_usbdev(dev);
 	struct urb		**urb;
 	struct ctrl_ctx		context;
 	int			i;
 
-	spin_lock_init (&context.lock);
+	spin_lock_init(&context.lock);
 	context.dev = dev;
-	init_completion (&context.complete);
+	init_completion(&context.complete);
 	context.count = param->sglen * param->iterations;
 	context.pending = 0;
 	context.status = -ENOMEM;
@@ -853,7 +856,7 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
 	if (!urb)
 		return -ENOMEM;
 	for (i = 0; i < param->sglen; i++) {
-		int			pipe = usb_rcvctrlpipe (udev, 0);
+		int			pipe = usb_rcvctrlpipe(udev, 0);
 		unsigned		len;
 		struct urb		*u;
 		struct usb_ctrlrequest	req;
@@ -869,104 +872,108 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
 		 * device, but some are chosen to trigger protocol stalls
 		 * or short reads.
 		 */
-		memset (&req, 0, sizeof req);
+		memset(&req, 0, sizeof req);
 		req.bRequest = USB_REQ_GET_DESCRIPTOR;
 		req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
 
 		switch (i % NUM_SUBCASES) {
-		case 0:		// get device descriptor
-			req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
-			len = sizeof (struct usb_device_descriptor);
+		case 0:		/* get device descriptor */
+			req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
+			len = sizeof(struct usb_device_descriptor);
 			break;
-		case 1:		// get first config descriptor (only)
-			req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
-			len = sizeof (struct usb_config_descriptor);
+		case 1:		/* get first config descriptor (only) */
+			req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
+			len = sizeof(struct usb_config_descriptor);
 			break;
-		case 2:		// get altsetting (OFTEN STALLS)
+		case 2:		/* get altsetting (OFTEN STALLS) */
 			req.bRequest = USB_REQ_GET_INTERFACE;
 			req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
-			// index = 0 means first interface
+			/* index = 0 means first interface */
 			len = 1;
 			expected = EPIPE;
 			break;
-		case 3:		// get interface status
+		case 3:		/* get interface status */
 			req.bRequest = USB_REQ_GET_STATUS;
 			req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
-			// interface 0
+			/* interface 0 */
 			len = 2;
 			break;
-		case 4:		// get device status
+		case 4:		/* get device status */
 			req.bRequest = USB_REQ_GET_STATUS;
 			req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
 			len = 2;
 			break;
-		case 5:		// get device qualifier (MAY STALL)
+		case 5:		/* get device qualifier (MAY STALL) */
 			req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
-			len = sizeof (struct usb_qualifier_descriptor);
+			len = sizeof(struct usb_qualifier_descriptor);
 			if (udev->speed != USB_SPEED_HIGH)
 				expected = EPIPE;
 			break;
-		case 6:		// get first config descriptor, plus interface
-			req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
-			len = sizeof (struct usb_config_descriptor);
-			len += sizeof (struct usb_interface_descriptor);
+		case 6:		/* get first config descriptor, plus interface */
+			req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
+			len = sizeof(struct usb_config_descriptor);
+			len += sizeof(struct usb_interface_descriptor);
 			break;
-		case 7:		// get interface descriptor (ALWAYS STALLS)
+		case 7:		/* get interface descriptor (ALWAYS STALLS) */
 			req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
-			// interface == 0
-			len = sizeof (struct usb_interface_descriptor);
+			/* interface == 0 */
+			len = sizeof(struct usb_interface_descriptor);
 			expected = -EPIPE;
 			break;
-		// NOTE: two consecutive stalls in the queue here.
-		// that tests fault recovery a bit more aggressively.
-		case 8:		// clear endpoint halt (MAY STALL)
+		/* NOTE: two consecutive stalls in the queue here.
+		 *  that tests fault recovery a bit more aggressively. */
+		case 8:		/* clear endpoint halt (MAY STALL) */
 			req.bRequest = USB_REQ_CLEAR_FEATURE;
 			req.bRequestType = USB_RECIP_ENDPOINT;
-			// wValue 0 == ep halt
-			// wIndex 0 == ep0 (shouldn't halt!)
+			/* wValue 0 == ep halt */
+			/* wIndex 0 == ep0 (shouldn't halt!) */
 			len = 0;
-			pipe = usb_sndctrlpipe (udev, 0);
+			pipe = usb_sndctrlpipe(udev, 0);
 			expected = EPIPE;
 			break;
-		case 9:		// get endpoint status
+		case 9:		/* get endpoint status */
 			req.bRequest = USB_REQ_GET_STATUS;
 			req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
-			// endpoint 0
+			/* endpoint 0 */
 			len = 2;
 			break;
-		case 10:	// trigger short read (EREMOTEIO)
-			req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
+		case 10:	/* trigger short read (EREMOTEIO) */
+			req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
 			len = 1024;
 			expected = -EREMOTEIO;
 			break;
-		// NOTE: two consecutive _different_ faults in the queue.
-		case 11:	// get endpoint descriptor (ALWAYS STALLS)
-			req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
-			// endpoint == 0
-			len = sizeof (struct usb_interface_descriptor);
+		/* NOTE: two consecutive _different_ faults in the queue. */
+		case 11:	/* get endpoint descriptor (ALWAYS STALLS) */
+			req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
+			/* endpoint == 0 */
+			len = sizeof(struct usb_interface_descriptor);
 			expected = EPIPE;
 			break;
-		// NOTE: sometimes even a third fault in the queue!
-		case 12:	// get string 0 descriptor (MAY STALL)
-			req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
-			// string == 0, for language IDs
-			len = sizeof (struct usb_interface_descriptor);
-			// may succeed when > 4 languages
-			expected = EREMOTEIO;	// or EPIPE, if no strings
+		/* NOTE: sometimes even a third fault in the queue! */
+		case 12:	/* get string 0 descriptor (MAY STALL) */
+			req.wValue = cpu_to_le16(USB_DT_STRING << 8);
+			/* string == 0, for language IDs */
+			len = sizeof(struct usb_interface_descriptor);
+			/* may succeed when > 4 languages */
+			expected = EREMOTEIO;	/* or EPIPE, if no strings */
 			break;
-		case 13:	// short read, resembling case 10
-			req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
-			// last data packet "should" be DATA1, not DATA0
+		case 13:	/* short read, resembling case 10 */
+			req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
+			/* last data packet "should" be DATA1, not DATA0 */
 			len = 1024 - udev->descriptor.bMaxPacketSize0;
 			expected = -EREMOTEIO;
 			break;
-		case 14:	// short read; try to fill the last packet
-			req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
+		case 14:	/* short read; try to fill the last packet */
+			req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
 			/* device descriptor size == 18 bytes */
 			len = udev->descriptor.bMaxPacketSize0;
 			switch (len) {
-			case 8:		len = 24; break;
-			case 16:	len = 32; break;
+			case 8:
+				len = 24;
+				break;
+			case 16:
+				len = 32;
+				break;
 			}
 			expected = -EREMOTEIO;
 			break;
@@ -975,8 +982,8 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
 			context.status = -EINVAL;
 			goto cleanup;
 		}
-		req.wLength = cpu_to_le16 (len);
-		urb [i] = u = simple_alloc_urb (udev, pipe, len);
+		req.wLength = cpu_to_le16(len);
+		urb[i] = u = simple_alloc_urb(udev, pipe, len);
 		if (!u)
 			goto cleanup;
 
@@ -994,9 +1001,9 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
 
 	/* queue the urbs */
 	context.urb = urb;
-	spin_lock_irq (&context.lock);
+	spin_lock_irq(&context.lock);
 	for (i = 0; i < param->sglen; i++) {
-		context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
+		context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
 		if (context.status != 0) {
 			ERROR(dev, "can't submit urb[%d], status %d\n",
 					i, context.status);
@@ -1005,23 +1012,23 @@ test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
 		}
 		context.pending++;
 	}
-	spin_unlock_irq (&context.lock);
+	spin_unlock_irq(&context.lock);
 
 	/* FIXME  set timer and time out; provide a disconnect hook */
 
 	/* wait for the last one to complete */
 	if (context.pending > 0)
-		wait_for_completion (&context.complete);
+		wait_for_completion(&context.complete);
 
 cleanup:
 	for (i = 0; i < param->sglen; i++) {
-		if (!urb [i])
+		if (!urb[i])
 			continue;
-		urb [i]->dev = udev;
+		urb[i]->dev = udev;
 		kfree(urb[i]->setup_packet);
-		simple_free_urb (urb [i]);
+		simple_free_urb(urb[i]);
 	}
-	kfree (urb);
+	kfree(urb);
 	return context.status;
 }
 #undef NUM_SUBCASES
@@ -1029,27 +1036,27 @@ cleanup:
 
 /*-------------------------------------------------------------------------*/
 
-static void unlink1_callback (struct urb *urb)
+static void unlink1_callback(struct urb *urb)
 {
 	int	status = urb->status;
 
-	// we "know" -EPIPE (stall) never happens
+	/* we "know" -EPIPE (stall) never happens */
 	if (!status)
-		status = usb_submit_urb (urb, GFP_ATOMIC);
+		status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status) {
 		urb->status = status;
 		complete(urb->context);
 	}
 }
 
-static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
+static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
 {
 	struct urb		*urb;
 	struct completion	completion;
 	int			retval = 0;
 
-	init_completion (&completion);
-	urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
+	init_completion(&completion);
+	urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size);
 	if (!urb)
 		return -ENOMEM;
 	urb->context = &completion;
@@ -1061,7 +1068,8 @@ static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
 	 * FIXME want additional tests for when endpoint is STALLing
 	 * due to errors, or is just NAKing requests.
 	 */
-	if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
+	retval = usb_submit_urb(urb, GFP_KERNEL);
+	if (retval != 0) {
 		dev_err(&dev->intf->dev, "submit fail %d\n", retval);
 		return retval;
 	}
@@ -1069,7 +1077,7 @@ static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
 	/* unlinking that should always work.  variable delay tests more
 	 * hcd states and code paths, even with little other system load.
 	 */
-	msleep (jiffies % (2 * INTERRUPT_RATE));
+	msleep(jiffies % (2 * INTERRUPT_RATE));
 	if (async) {
 		while (!completion_done(&completion)) {
 			retval = usb_unlink_urb(urb);
@@ -1098,11 +1106,11 @@ static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
 			break;
 		}
 	} else
-		usb_kill_urb (urb);
+		usb_kill_urb(urb);
 
-	wait_for_completion (&completion);
+	wait_for_completion(&completion);
 	retval = urb->status;
-	simple_free_urb (urb);
+	simple_free_urb(urb);
 
 	if (async)
 		return (retval == -ECONNRESET) ? 0 : retval - 1000;
@@ -1111,14 +1119,14 @@ static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
 				0 : retval - 2000;
 }
 
-static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
+static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
 {
 	int			retval = 0;
 
 	/* test sync and async paths */
-	retval = unlink1 (dev, pipe, len, 1);
+	retval = unlink1(dev, pipe, len, 1);
 	if (!retval)
-		retval = unlink1 (dev, pipe, len, 0);
+		retval = unlink1(dev, pipe, len, 0);
 	return retval;
 }
 
@@ -1130,7 +1138,7 @@ static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
 	u16	status;
 
 	/* shouldn't look or act halted */
-	retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
+	retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
 	if (retval < 0) {
 		ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
 				ep, retval);
@@ -1152,7 +1160,7 @@ static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
 	u16	status;
 
 	/* should look and act halted */
-	retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
+	retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
 	if (retval < 0) {
 		ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
 				ep, retval);
@@ -1182,7 +1190,7 @@ static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
 		return retval;
 
 	/* set halt (protocol test only), verify it worked */
-	retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
+	retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
 			USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
 			USB_ENDPOINT_HALT, ep,
 			NULL, 0, USB_CTRL_SET_TIMEOUT);
@@ -1195,7 +1203,7 @@ static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
 		return retval;
 
 	/* clear halt (tests API + protocol), verify it worked */
-	retval = usb_clear_halt (urb->dev, urb->pipe);
+	retval = usb_clear_halt(urb->dev, urb->pipe);
 	if (retval < 0) {
 		ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
 		return retval;
@@ -1209,18 +1217,18 @@ static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
 	return 0;
 }
 
-static int halt_simple (struct usbtest_dev *dev)
+static int halt_simple(struct usbtest_dev *dev)
 {
 	int		ep;
 	int		retval = 0;
 	struct urb	*urb;
 
-	urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
+	urb = simple_alloc_urb(testdev_to_usbdev(dev), 0, 512);
 	if (urb == NULL)
 		return -ENOMEM;
 
 	if (dev->in_pipe) {
-		ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
+		ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
 		urb->pipe = dev->in_pipe;
 		retval = test_halt(dev, ep, urb);
 		if (retval < 0)
@@ -1228,12 +1236,12 @@ static int halt_simple (struct usbtest_dev *dev)
 	}
 
 	if (dev->out_pipe) {
-		ep = usb_pipeendpoint (dev->out_pipe);
+		ep = usb_pipeendpoint(dev->out_pipe);
 		urb->pipe = dev->out_pipe;
 		retval = test_halt(dev, ep, urb);
 	}
 done:
-	simple_free_urb (urb);
+	simple_free_urb(urb);
 	return retval;
 }
 
@@ -1247,7 +1255,7 @@ done:
  * need to be able to handle more than one OUT data packet.  We'll
  * try whatever we're told to try.
  */
-static int ctrl_out (struct usbtest_dev *dev,
+static int ctrl_out(struct usbtest_dev *dev,
 		unsigned count, unsigned length, unsigned vary)
 {
 	unsigned		i, j, len;
@@ -1263,7 +1271,7 @@ static int ctrl_out (struct usbtest_dev *dev,
 	if (!buf)
 		return -ENOMEM;
 
-	udev = testdev_to_usbdev (dev);
+	udev = testdev_to_usbdev(dev);
 	len = length;
 	retval = 0;
 
@@ -1273,8 +1281,8 @@ static int ctrl_out (struct usbtest_dev *dev,
 	for (i = 0; i < count; i++) {
 		/* write patterned data */
 		for (j = 0; j < len; j++)
-			buf [j] = i + j;
-		retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
+			buf[j] = i + j;
+		retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 				0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
 				0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
 		if (retval != len) {
@@ -1288,7 +1296,7 @@ static int ctrl_out (struct usbtest_dev *dev,
 		}
 
 		/* read it back -- assuming nothing intervened!!  */
-		retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
+		retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
 				0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
 		if (retval != len) {
@@ -1303,9 +1311,9 @@ static int ctrl_out (struct usbtest_dev *dev,
 
 		/* fail if we can't verify */
 		for (j = 0; j < len; j++) {
-			if (buf [j] != (u8) (i + j)) {
+			if (buf[j] != (u8) (i + j)) {
 				ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
-					j, buf [j], (u8) i + j);
+					j, buf[j], (u8) i + j);
 				retval = -EBADMSG;
 				break;
 			}
@@ -1326,10 +1334,10 @@ static int ctrl_out (struct usbtest_dev *dev,
 	}
 
 	if (retval < 0)
-		ERROR (dev, "ctrl_out %s failed, code %d, count %d\n",
+		ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
 			what, retval, i);
 
-	kfree (buf);
+	kfree(buf);
 	return retval;
 }
 
@@ -1351,7 +1359,7 @@ struct iso_context {
 	struct usbtest_dev	*dev;
 };
 
-static void iso_callback (struct urb *urb)
+static void iso_callback(struct urb *urb)
 {
 	struct iso_context	*ctx = urb->context;
 
@@ -1363,10 +1371,12 @@ static void iso_callback (struct urb *urb)
 		ctx->errors += urb->error_count;
 	else if (urb->status != 0)
 		ctx->errors += urb->number_of_packets;
+	else if (urb->actual_length != urb->transfer_buffer_length)
+		ctx->errors++;
 
 	if (urb->status == 0 && ctx->count > (ctx->pending - 1)
 			&& !ctx->submit_error) {
-		int status = usb_submit_urb (urb, GFP_ATOMIC);
+		int status = usb_submit_urb(urb, GFP_ATOMIC);
 		switch (status) {
 		case 0:
 			goto done;
@@ -1388,13 +1398,13 @@ static void iso_callback (struct urb *urb)
 			dev_err(&ctx->dev->intf->dev,
 				"iso test, %lu errors out of %lu\n",
 				ctx->errors, ctx->packet_count);
-		complete (&ctx->done);
+		complete(&ctx->done);
 	}
 done:
 	spin_unlock(&ctx->lock);
 }
 
-static struct urb *iso_alloc_urb (
+static struct urb *iso_alloc_urb(
 	struct usb_device	*udev,
 	int			pipe,
 	struct usb_endpoint_descriptor	*desc,
@@ -1410,7 +1420,7 @@ static struct urb *iso_alloc_urb (
 	maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
 	packets = DIV_ROUND_UP(bytes, maxp);
 
-	urb = usb_alloc_urb (packets, GFP_KERNEL);
+	urb = usb_alloc_urb(packets, GFP_KERNEL);
 	if (!urb)
 		return urb;
 	urb->dev = udev;
@@ -1418,30 +1428,30 @@ static struct urb *iso_alloc_urb (
 
 	urb->number_of_packets = packets;
 	urb->transfer_buffer_length = bytes;
-	urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
+	urb->transfer_buffer = usb_alloc_coherent(udev, bytes, GFP_KERNEL,
 			&urb->transfer_dma);
 	if (!urb->transfer_buffer) {
-		usb_free_urb (urb);
+		usb_free_urb(urb);
 		return NULL;
 	}
-	memset (urb->transfer_buffer, 0, bytes);
+	memset(urb->transfer_buffer, 0, bytes);
 	for (i = 0; i < packets; i++) {
 		/* here, only the last packet will be short */
-		urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
+		urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
 		bytes -= urb->iso_frame_desc[i].length;
 
 		urb->iso_frame_desc[i].offset = maxp * i;
 	}
 
 	urb->complete = iso_callback;
-	// urb->context = SET BY CALLER
+	/* urb->context = SET BY CALLER */
 	urb->interval = 1 << (desc->bInterval - 1);
 	urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 	return urb;
 }
 
 static int
-test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
+test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
 		int pipe, struct usb_endpoint_descriptor *desc)
 {
 	struct iso_context	context;
@@ -1457,11 +1467,11 @@ test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
 	memset(&context, 0, sizeof context);
 	context.count = param->iterations * param->sglen;
 	context.dev = dev;
-	init_completion (&context.done);
-	spin_lock_init (&context.lock);
+	init_completion(&context.done);
+	spin_lock_init(&context.lock);
 
-	memset (urbs, 0, sizeof urbs);
-	udev = testdev_to_usbdev (dev);
+	memset(urbs, 0, sizeof urbs);
+	udev = testdev_to_usbdev(dev);
 	dev_info(&dev->intf->dev,
 		"... iso period %d %sframes, wMaxPacket %04x\n",
 		1 << (desc->bInterval - 1),
@@ -1469,14 +1479,14 @@ test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
 		le16_to_cpu(desc->wMaxPacketSize));
 
 	for (i = 0; i < param->sglen; i++) {
-		urbs [i] = iso_alloc_urb (udev, pipe, desc,
+		urbs[i] = iso_alloc_urb(udev, pipe, desc,
 				param->length);
-		if (!urbs [i]) {
+		if (!urbs[i]) {
 			status = -ENOMEM;
 			goto fail;
 		}
 		packets += urbs[i]->number_of_packets;
-		urbs [i]->context = &context;
+		urbs[i]->context = &context;
 	}
 	packets *= param->iterations;
 	dev_info(&dev->intf->dev,
@@ -1485,27 +1495,27 @@ test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
 			/ ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
 		packets);
 
-	spin_lock_irq (&context.lock);
+	spin_lock_irq(&context.lock);
 	for (i = 0; i < param->sglen; i++) {
 		++context.pending;
-		status = usb_submit_urb (urbs [i], GFP_ATOMIC);
+		status = usb_submit_urb(urbs[i], GFP_ATOMIC);
 		if (status < 0) {
-			ERROR (dev, "submit iso[%d], error %d\n", i, status);
+			ERROR(dev, "submit iso[%d], error %d\n", i, status);
 			if (i == 0) {
-				spin_unlock_irq (&context.lock);
+				spin_unlock_irq(&context.lock);
 				goto fail;
 			}
 
-			simple_free_urb (urbs [i]);
+			simple_free_urb(urbs[i]);
 			urbs[i] = NULL;
 			context.pending--;
 			context.submit_error = 1;
 			break;
 		}
 	}
-	spin_unlock_irq (&context.lock);
+	spin_unlock_irq(&context.lock);
 
-	wait_for_completion (&context.done);
+	wait_for_completion(&context.done);
 
 	for (i = 0; i < param->sglen; i++) {
 		if (urbs[i])
@@ -1526,8 +1536,8 @@ test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
 
 fail:
 	for (i = 0; i < param->sglen; i++) {
-		if (urbs [i])
-			simple_free_urb (urbs [i]);
+		if (urbs[i])
+			simple_free_urb(urbs[i]);
 	}
 	return status;
 }
@@ -1557,10 +1567,10 @@ fail:
 
 /* No BKL needed */
 static int
-usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
+usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
 {
-	struct usbtest_dev	*dev = usb_get_intfdata (intf);
-	struct usb_device	*udev = testdev_to_usbdev (dev);
+	struct usbtest_dev	*dev = usb_get_intfdata(intf);
+	struct usb_device	*udev = testdev_to_usbdev(dev);
 	struct usbtest_param	*param = buf;
 	int			retval = -EOPNOTSUPP;
 	struct urb		*urb;
@@ -1569,7 +1579,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 	struct timeval		start;
 	unsigned		i;
 
-	// FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
+	/* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
 
 	pattern = mod_pattern;
 
@@ -1595,9 +1605,9 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			mutex_unlock(&dev->lock);
 			return -ENODEV;
 		}
-		res = set_altsetting (dev, dev->info->alt);
+		res = set_altsetting(dev, dev->info->alt);
 		if (res) {
-			dev_err (&intf->dev,
+			dev_err(&intf->dev,
 					"set altsetting to %d failed, %d\n",
 					dev->info->alt, res);
 			mutex_unlock(&dev->lock);
@@ -1614,7 +1624,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 	 * FIXME add more tests!  cancel requests, verify the data, control
 	 * queueing, concurrent read+write threads, and so on.
 	 */
-	do_gettimeofday (&start);
+	do_gettimeofday(&start);
 	switch (param->test_num) {
 
 	case 0:
@@ -1629,14 +1639,14 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev,
 				"TEST 1:  write %d bytes %u times\n",
 				param->length, param->iterations);
-		urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
+		urb = simple_alloc_urb(udev, dev->out_pipe, param->length);
 		if (!urb) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk sink (maybe accepts short writes)
+		/* FIRMWARE:  bulk sink (maybe accepts short writes) */
 		retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
-		simple_free_urb (urb);
+		simple_free_urb(urb);
 		break;
 	case 2:
 		if (dev->in_pipe == 0)
@@ -1644,14 +1654,14 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev,
 				"TEST 2:  read %d bytes %u times\n",
 				param->length, param->iterations);
-		urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
+		urb = simple_alloc_urb(udev, dev->in_pipe, param->length);
 		if (!urb) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk source (maybe generates short writes)
+		/* FIRMWARE:  bulk source (maybe generates short writes) */
 		retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
-		simple_free_urb (urb);
+		simple_free_urb(urb);
 		break;
 	case 3:
 		if (dev->out_pipe == 0 || param->vary == 0)
@@ -1659,15 +1669,15 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev,
 				"TEST 3:  write/%d 0..%d bytes %u times\n",
 				param->vary, param->length, param->iterations);
-		urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
+		urb = simple_alloc_urb(udev, dev->out_pipe, param->length);
 		if (!urb) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk sink (maybe accepts short writes)
+		/* FIRMWARE:  bulk sink (maybe accepts short writes) */
 		retval = simple_io(dev, urb, param->iterations, param->vary,
 					0, "test3");
-		simple_free_urb (urb);
+		simple_free_urb(urb);
 		break;
 	case 4:
 		if (dev->in_pipe == 0 || param->vary == 0)
@@ -1675,15 +1685,15 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev,
 				"TEST 4:  read/%d 0..%d bytes %u times\n",
 				param->vary, param->length, param->iterations);
-		urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
+		urb = simple_alloc_urb(udev, dev->in_pipe, param->length);
 		if (!urb) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk source (maybe generates short writes)
+		/* FIRMWARE:  bulk source (maybe generates short writes) */
 		retval = simple_io(dev, urb, param->iterations, param->vary,
 					0, "test4");
-		simple_free_urb (urb);
+		simple_free_urb(urb);
 		break;
 
 	/* Queued bulk I/O tests */
@@ -1694,15 +1704,15 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 5:  write %d sglists %d entries of %d bytes\n",
 				param->iterations,
 				param->sglen, param->length);
-		sg = alloc_sglist (param->sglen, param->length, 0);
+		sg = alloc_sglist(param->sglen, param->length, 0);
 		if (!sg) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk sink (maybe accepts short writes)
+		/* FIRMWARE:  bulk sink (maybe accepts short writes) */
 		retval = perform_sglist(dev, param->iterations, dev->out_pipe,
 				&req, sg, param->sglen);
-		free_sglist (sg, param->sglen);
+		free_sglist(sg, param->sglen);
 		break;
 
 	case 6:
@@ -1712,15 +1722,15 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 6:  read %d sglists %d entries of %d bytes\n",
 				param->iterations,
 				param->sglen, param->length);
-		sg = alloc_sglist (param->sglen, param->length, 0);
+		sg = alloc_sglist(param->sglen, param->length, 0);
 		if (!sg) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk source (maybe generates short writes)
+		/* FIRMWARE:  bulk source (maybe generates short writes) */
 		retval = perform_sglist(dev, param->iterations, dev->in_pipe,
 				&req, sg, param->sglen);
-		free_sglist (sg, param->sglen);
+		free_sglist(sg, param->sglen);
 		break;
 	case 7:
 		if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
@@ -1729,15 +1739,15 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 7:  write/%d %d sglists %d entries 0..%d bytes\n",
 				param->vary, param->iterations,
 				param->sglen, param->length);
-		sg = alloc_sglist (param->sglen, param->length, param->vary);
+		sg = alloc_sglist(param->sglen, param->length, param->vary);
 		if (!sg) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk sink (maybe accepts short writes)
+		/* FIRMWARE:  bulk sink (maybe accepts short writes) */
 		retval = perform_sglist(dev, param->iterations, dev->out_pipe,
 				&req, sg, param->sglen);
-		free_sglist (sg, param->sglen);
+		free_sglist(sg, param->sglen);
 		break;
 	case 8:
 		if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
@@ -1746,15 +1756,15 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 8:  read/%d %d sglists %d entries 0..%d bytes\n",
 				param->vary, param->iterations,
 				param->sglen, param->length);
-		sg = alloc_sglist (param->sglen, param->length, param->vary);
+		sg = alloc_sglist(param->sglen, param->length, param->vary);
 		if (!sg) {
 			retval = -ENOMEM;
 			break;
 		}
-		// FIRMWARE:  bulk source (maybe generates short writes)
+		/* FIRMWARE:  bulk source (maybe generates short writes) */
 		retval = perform_sglist(dev, param->iterations, dev->in_pipe,
 				&req, sg, param->sglen);
-		free_sglist (sg, param->sglen);
+		free_sglist(sg, param->sglen);
 		break;
 
 	/* non-queued sanity tests for control (chapter 9 subset) */
@@ -1764,7 +1774,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 9:  ch9 (subset) control tests, %d times\n",
 				param->iterations);
 		for (i = param->iterations; retval == 0 && i--; /* NOP */)
-			retval = ch9_postconfig (dev);
+			retval = ch9_postconfig(dev);
 		if (retval)
 			dev_err(&intf->dev, "ch9 subset failed, "
 					"iterations left %d\n", i);
@@ -1779,7 +1789,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 				"TEST 10:  queue %d control calls, %d times\n",
 				param->sglen,
 				param->iterations);
-		retval = test_ctrl_queue (dev, param);
+		retval = test_ctrl_queue(dev, param);
 		break;
 
 	/* simple non-queued unlinks (ring with one urb) */
@@ -1790,7 +1800,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev, "TEST 11:  unlink %d reads of %d\n",
 				param->iterations, param->length);
 		for (i = param->iterations; retval == 0 && i--; /* NOP */)
-			retval = unlink_simple (dev, dev->in_pipe,
+			retval = unlink_simple(dev, dev->in_pipe,
 						param->length);
 		if (retval)
 			dev_err(&intf->dev, "unlink reads failed %d, "
@@ -1803,7 +1813,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev, "TEST 12:  unlink %d writes of %d\n",
 				param->iterations, param->length);
 		for (i = param->iterations; retval == 0 && i--; /* NOP */)
-			retval = unlink_simple (dev, dev->out_pipe,
+			retval = unlink_simple(dev, dev->out_pipe,
 						param->length);
 		if (retval)
 			dev_err(&intf->dev, "unlink writes failed %d, "
@@ -1818,7 +1828,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 		dev_info(&intf->dev, "TEST 13:  set/clear %d halts\n",
 				param->iterations);
 		for (i = param->iterations; retval == 0 && i--; /* NOP */)
-			retval = halt_simple (dev);
+			retval = halt_simple(dev);
 
 		if (retval)
 			ERROR(dev, "halts failed, iterations left %d\n", i);
@@ -1844,8 +1854,8 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 15:  write %d iso, %d entries of %d bytes\n",
 				param->iterations,
 				param->sglen, param->length);
-		// FIRMWARE:  iso sink
-		retval = test_iso_queue (dev, param,
+		/* FIRMWARE:  iso sink */
+		retval = test_iso_queue(dev, param,
 				dev->out_iso_pipe, dev->iso_out);
 		break;
 
@@ -1857,17 +1867,17 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 			"TEST 16:  read %d iso, %d entries of %d bytes\n",
 				param->iterations,
 				param->sglen, param->length);
-		// FIRMWARE:  iso source
-		retval = test_iso_queue (dev, param,
+		/* FIRMWARE:  iso source */
+		retval = test_iso_queue(dev, param,
 				dev->in_iso_pipe, dev->iso_in);
 		break;
 
-	// FIXME unlink from queue (ring with N urbs)
+	/* FIXME unlink from queue (ring with N urbs) */
 
-	// FIXME scatterlist cancel (needs helper thread)
+	/* FIXME scatterlist cancel (needs helper thread) */
 
 	}
-	do_gettimeofday (&param->duration);
+	do_gettimeofday(&param->duration);
 	param->duration.tv_sec -= start.tv_sec;
 	param->duration.tv_usec -= start.tv_usec;
 	if (param->duration.tv_usec < 0) {
@@ -1880,22 +1890,22 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
 
 /*-------------------------------------------------------------------------*/
 
-static unsigned force_interrupt = 0;
-module_param (force_interrupt, uint, 0);
-MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
+static unsigned force_interrupt;
+module_param(force_interrupt, uint, 0);
+MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
 
 #ifdef	GENERIC
 static unsigned short vendor;
 module_param(vendor, ushort, 0);
-MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
+MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
 
 static unsigned short product;
 module_param(product, ushort, 0);
-MODULE_PARM_DESC (product, "product code (from vendor)");
+MODULE_PARM_DESC(product, "product code (from vendor)");
 #endif
 
 static int
-usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
+usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
 	struct usb_device	*udev;
 	struct usbtest_dev	*dev;
@@ -1903,7 +1913,7 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 	char			*rtest, *wtest;
 	char			*irtest, *iwtest;
 
-	udev = interface_to_usbdev (intf);
+	udev = interface_to_usbdev(intf);
 
 #ifdef	GENERIC
 	/* specify devices by module parameters? */
@@ -1930,8 +1940,9 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 	dev->intf = intf;
 
 	/* cacheline-aligned scratch for i/o */
-	if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
-		kfree (dev);
+	dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
+	if (dev->buf == NULL) {
+		kfree(dev);
 		return -ENOMEM;
 	}
 
@@ -1943,18 +1954,18 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 	irtest = iwtest = "";
 	if (force_interrupt || udev->speed == USB_SPEED_LOW) {
 		if (info->ep_in) {
-			dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
+			dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
 			rtest = " intr-in";
 		}
 		if (info->ep_out) {
-			dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
+			dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
 			wtest = " intr-out";
 		}
 	} else {
 		if (info->autoconf) {
 			int status;
 
-			status = get_endpoints (dev, intf);
+			status = get_endpoints(dev, intf);
 			if (status < 0) {
 				WARNING(dev, "couldn't get endpoints, %d\n",
 						status);
@@ -1963,10 +1974,10 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 			/* may find bulk or ISO pipes */
 		} else {
 			if (info->ep_in)
-				dev->in_pipe = usb_rcvbulkpipe (udev,
+				dev->in_pipe = usb_rcvbulkpipe(udev,
 							info->ep_in);
 			if (info->ep_out)
-				dev->out_pipe = usb_sndbulkpipe (udev,
+				dev->out_pipe = usb_sndbulkpipe(udev,
 							info->ep_out);
 		}
 		if (dev->in_pipe)
@@ -1979,15 +1990,23 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 			iwtest = " iso-out";
 	}
 
-	usb_set_intfdata (intf, dev);
-	dev_info (&intf->dev, "%s\n", info->name);
-	dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
+	usb_set_intfdata(intf, dev);
+	dev_info(&intf->dev, "%s\n", info->name);
+	dev_info(&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
 			({ char *tmp;
 			switch (udev->speed) {
-			case USB_SPEED_LOW: tmp = "low"; break;
-			case USB_SPEED_FULL: tmp = "full"; break;
-			case USB_SPEED_HIGH: tmp = "high"; break;
-			default: tmp = "unknown"; break;
+			case USB_SPEED_LOW:
+				tmp = "low";
+				break;
+			case USB_SPEED_FULL:
+				tmp = "full";
+				break;
+			case USB_SPEED_HIGH:
+				tmp = "high";
+				break;
+			default:
+				tmp = "unknown";
+				break;
 			}; tmp; }),
 			info->ctrl_out ? " in/out" : "",
 			rtest, wtest,
@@ -1996,24 +2015,24 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
 	return 0;
 }
 
-static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
+static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
 {
 	return 0;
 }
 
-static int usbtest_resume (struct usb_interface *intf)
+static int usbtest_resume(struct usb_interface *intf)
 {
 	return 0;
 }
 
 
-static void usbtest_disconnect (struct usb_interface *intf)
+static void usbtest_disconnect(struct usb_interface *intf)
 {
-	struct usbtest_dev	*dev = usb_get_intfdata (intf);
+	struct usbtest_dev	*dev = usb_get_intfdata(intf);
 
-	usb_set_intfdata (intf, NULL);
-	dev_dbg (&intf->dev, "disconnect\n");
-	kfree (dev);
+	usb_set_intfdata(intf, NULL);
+	dev_dbg(&intf->dev, "disconnect\n");
+	kfree(dev);
 }
 
 /* Basic testing only needs a device that can source or sink bulk traffic.
@@ -2050,9 +2069,9 @@ static struct usbtest_info fw_info = {
 	.ep_in		= 2,
 	.ep_out		= 2,
 	.alt		= 1,
-	.autoconf	= 1,		// iso and ctrl_out need autoconf
+	.autoconf	= 1,		/* iso and ctrl_out need autoconf */
 	.ctrl_out	= 1,
-	.iso		= 1,		// iso_ep's are #8 in/out
+	.iso		= 1,		/* iso_ep's are #8 in/out */
 };
 
 /* peripheral running Linux and 'zero.c' test firmware, or
@@ -2109,56 +2128,56 @@ static const struct usb_device_id id_table[] = {
 	 */
 
 	/* generic EZ-USB FX controller */
-	{ USB_DEVICE (0x0547, 0x2235),
+	{ USB_DEVICE(0x0547, 0x2235),
 		.driver_info = (unsigned long) &ez1_info,
-		},
+	},
 
 	/* CY3671 development board with EZ-USB FX */
-	{ USB_DEVICE (0x0547, 0x0080),
+	{ USB_DEVICE(0x0547, 0x0080),
 		.driver_info = (unsigned long) &ez1_info,
-		},
+	},
 
 	/* generic EZ-USB FX2 controller (or development board) */
-	{ USB_DEVICE (0x04b4, 0x8613),
+	{ USB_DEVICE(0x04b4, 0x8613),
 		.driver_info = (unsigned long) &ez2_info,
-		},
+	},
 
 	/* re-enumerated usb test device firmware */
-	{ USB_DEVICE (0xfff0, 0xfff0),
+	{ USB_DEVICE(0xfff0, 0xfff0),
 		.driver_info = (unsigned long) &fw_info,
-		},
+	},
 
 	/* "Gadget Zero" firmware runs under Linux */
-	{ USB_DEVICE (0x0525, 0xa4a0),
+	{ USB_DEVICE(0x0525, 0xa4a0),
 		.driver_info = (unsigned long) &gz_info,
-		},
+	},
 
 	/* so does a user-mode variant */
-	{ USB_DEVICE (0x0525, 0xa4a4),
+	{ USB_DEVICE(0x0525, 0xa4a4),
 		.driver_info = (unsigned long) &um_info,
-		},
+	},
 
 	/* ... and a user-mode variant that talks iso */
-	{ USB_DEVICE (0x0525, 0xa4a3),
+	{ USB_DEVICE(0x0525, 0xa4a3),
 		.driver_info = (unsigned long) &um2_info,
-		},
+	},
 
 #ifdef KEYSPAN_19Qi
 	/* Keyspan 19qi uses an21xx (original EZ-USB) */
-	// this does not coexist with the real Keyspan 19qi driver!
-	{ USB_DEVICE (0x06cd, 0x010b),
+	/* this does not coexist with the real Keyspan 19qi driver! */
+	{ USB_DEVICE(0x06cd, 0x010b),
 		.driver_info = (unsigned long) &ez1_info,
-		},
+	},
 #endif
 
 	/*-------------------------------------------------------------*/
 
 #ifdef IBOT2
 	/* iBOT2 makes a nice source of high speed bulk-in data */
-	// this does not coexist with a real iBOT2 driver!
-	{ USB_DEVICE (0x0b62, 0x0059),
+	/* this does not coexist with a real iBOT2 driver! */
+	{ USB_DEVICE(0x0b62, 0x0059),
 		.driver_info = (unsigned long) &ibot2_info,
-		},
+	},
 #endif
 
 	/*-------------------------------------------------------------*/
@@ -2172,7 +2191,7 @@ static const struct usb_device_id id_table[] = {
 
 	{ }
 };
-MODULE_DEVICE_TABLE (usb, id_table);
+MODULE_DEVICE_TABLE(usb, id_table);
 
 static struct usb_driver usbtest_driver = {
 	.name =		"usbtest",
@@ -2186,22 +2205,22 @@ static struct usb_driver usbtest_driver = {
 
 /*-------------------------------------------------------------------------*/
 
-static int __init usbtest_init (void)
+static int __init usbtest_init(void)
 {
 #ifdef GENERIC
 	if (vendor)
 		pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
 #endif
-	return usb_register (&usbtest_driver);
+	return usb_register(&usbtest_driver);
 }
-module_init (usbtest_init);
+module_init(usbtest_init);
 
-static void __exit usbtest_exit (void)
+static void __exit usbtest_exit(void)
 {
-	usb_deregister (&usbtest_driver);
+	usb_deregister(&usbtest_driver);
 }
-module_exit (usbtest_exit);
+module_exit(usbtest_exit);
 
-MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
-MODULE_LICENSE ("GPL");
+MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
+MODULE_LICENSE("GPL");
 
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
new file mode 100644
index 0000000..719c618
--- /dev/null
+++ b/drivers/usb/misc/yurex.c
@@ -0,0 +1,563 @@
+/*
+ * Driver for Meywa-Denki & KAYAC YUREX
+ *
+ * Copyright (C) 2010 Tomoki Sekiyama (tomoki.sekiyama@gmail.com)
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation, version 2.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kref.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/hid.h>
+
+#define DRIVER_AUTHOR "Tomoki Sekiyama"
+#define DRIVER_DESC "Driver for Meywa-Denki & KAYAC YUREX"
+
+#define YUREX_VENDOR_ID		0x0c45
+#define YUREX_PRODUCT_ID	0x1010
+
+#define CMD_ACK		'!'
+#define CMD_ANIMATE	'A'
+#define CMD_COUNT	'C'
+#define CMD_LED		'L'
+#define CMD_READ	'R'
+#define CMD_SET		'S'
+#define CMD_VERSION	'V'
+#define CMD_EOF		0x0d
+#define CMD_PADDING	0xff
+
+#define YUREX_BUF_SIZE		8
+#define YUREX_WRITE_TIMEOUT	(HZ*2)
+
+/* table of devices that work with this driver */
+static struct usb_device_id yurex_table[] = {
+	{ USB_DEVICE(YUREX_VENDOR_ID, YUREX_PRODUCT_ID) },
+	{ }					/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, yurex_table);
+
+#ifdef CONFIG_USB_DYNAMIC_MINORS
+#define YUREX_MINOR_BASE	0
+#else
+#define YUREX_MINOR_BASE	192
+#endif
+
+/* Structure to hold all of our device specific stuff */
+struct usb_yurex {
+	struct usb_device	*udev;
+	struct usb_interface	*interface;
+	__u8			int_in_endpointAddr;
+	struct urb		*urb;		/* URB for interrupt in */
+	unsigned char           *int_buffer;	/* buffer for intterupt in */
+	struct urb		*cntl_urb;	/* URB for control msg */
+	struct usb_ctrlrequest	*cntl_req;	/* req for control msg */
+	unsigned char		*cntl_buffer;	/* buffer for control msg */
+
+	struct kref		kref;
+	struct mutex		io_mutex;
+	struct fasync_struct	*async_queue;
+	wait_queue_head_t	waitq;
+
+	spinlock_t		lock;
+	__s64			bbu;		/* BBU from device */
+};
+#define to_yurex_dev(d) container_of(d, struct usb_yurex, kref)
+
+static struct usb_driver yurex_driver;
+static const struct file_operations yurex_fops;
+
+
+static void yurex_control_callback(struct urb *urb)
+{
+	struct usb_yurex *dev = urb->context;
+	int status = urb->status;
+
+	if (status) {
+		err("%s - control failed: %d\n", __func__, status);
+		wake_up_interruptible(&dev->waitq);
+		return;
+	}
+	/* on success, sender woken up by CMD_ACK int in, or timeout */
+}
+
+static void yurex_delete(struct kref *kref)
+{
+	struct usb_yurex *dev = to_yurex_dev(kref);
+
+	dbg("yurex_delete");
+
+	usb_put_dev(dev->udev);
+	if (dev->cntl_urb) {
+		usb_kill_urb(dev->cntl_urb);
+		if (dev->cntl_req)
+			usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
+				dev->cntl_req, dev->cntl_urb->setup_dma);
+		if (dev->cntl_buffer)
+			usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
+				dev->cntl_buffer, dev->cntl_urb->transfer_dma);
+		usb_free_urb(dev->cntl_urb);
+	}
+	if (dev->urb) {
+		usb_kill_urb(dev->urb);
+		if (dev->int_buffer)
+			usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
+				dev->int_buffer, dev->urb->transfer_dma);
+		usb_free_urb(dev->urb);
+	}
+	kfree(dev);
+}
+
+/*
+ * usb class driver info in order to get a minor number from the usb core,
+ * and to have the device registered with the driver core
+ */
+static struct usb_class_driver yurex_class = {
+	.name =		"yurex%d",
+	.fops =		&yurex_fops,
+	.minor_base =	YUREX_MINOR_BASE,
+};
+
+static void yurex_interrupt(struct urb *urb)
+{
+	struct usb_yurex *dev = urb->context;
+	unsigned char *buf = dev->int_buffer;
+	int status = urb->status;
+	unsigned long flags;
+	int retval, i;
+
+	switch (status) {
+	case 0: /*success*/
+		break;
+	case -EOVERFLOW:
+		err("%s - overflow with length %d, actual length is %d",
+		    __func__, YUREX_BUF_SIZE, dev->urb->actual_length);
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+	case -EILSEQ:
+		/* The device is terminated, clean up */
+		return;
+	default:
+		err("%s - unknown status received: %d", __func__, status);
+		goto exit;
+	}
+
+	/* handle received message */
+	switch (buf[0]) {
+	case CMD_COUNT:
+	case CMD_READ:
+		if (buf[6] == CMD_EOF) {
+			spin_lock_irqsave(&dev->lock, flags);
+			dev->bbu = 0;
+			for (i = 1; i < 6; i++) {
+				dev->bbu += buf[i];
+				if (i != 5)
+					dev->bbu <<= 8;
+			}
+			dbg("%s count: %lld", __func__, dev->bbu);
+			spin_unlock_irqrestore(&dev->lock, flags);
+
+			kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
+		}
+		else
+			dbg("data format error - no EOF");
+		break;
+	case CMD_ACK:
+		dbg("%s ack: %c", __func__, buf[1]);
+		wake_up_interruptible(&dev->waitq);
+		break;
+	}
+
+exit:
+	retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
+	if (retval) {
+		err("%s - usb_submit_urb failed: %d",
+			__func__, retval);
+	}
+}
+
+static int yurex_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+	struct usb_yurex *dev;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	int retval = -ENOMEM;
+	int i;
+	DEFINE_WAIT(wait);
+
+	/* allocate memory for our device state and initialize it */
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		err("Out of memory");
+		goto error;
+	}
+	kref_init(&dev->kref);
+	mutex_init(&dev->io_mutex);
+	spin_lock_init(&dev->lock);
+	init_waitqueue_head(&dev->waitq);
+
+	dev->udev = usb_get_dev(interface_to_usbdev(interface));
+	dev->interface = interface;
+
+	/* set up the endpoint information */
+	iface_desc = interface->cur_altsetting;
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
+		endpoint = &iface_desc->endpoint[i].desc;
+
+		if (usb_endpoint_is_int_in(endpoint)) {
+			dev->int_in_endpointAddr = endpoint->bEndpointAddress;
+			break;
+		}
+	}
+	if (!dev->int_in_endpointAddr) {
+		retval = -ENODEV;
+		err("Could not find endpoints");
+		goto error;
+	}
+
+
+	/* allocate control URB */
+	dev->cntl_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!dev->cntl_urb) {
+		err("Could not allocate control URB");
+		goto error;
+	}
+
+	/* allocate buffer for control req */
+	dev->cntl_req = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE,
+					   GFP_KERNEL,
+					   &dev->cntl_urb->setup_dma);
+	if (!dev->cntl_req) {
+		err("Could not allocate cntl_req");
+		goto error;
+	}
+
+	/* allocate buffer for control msg */
+	dev->cntl_buffer = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE,
+					      GFP_KERNEL,
+					      &dev->cntl_urb->transfer_dma);
+	if (!dev->cntl_buffer) {
+		err("Could not allocate cntl_buffer");
+		goto error;
+	}
+
+	/* configure control URB */
+	dev->cntl_req->bRequestType = USB_DIR_OUT | USB_TYPE_CLASS |
+				      USB_RECIP_INTERFACE;
+	dev->cntl_req->bRequest	= HID_REQ_SET_REPORT;
+	dev->cntl_req->wValue	= cpu_to_le16((HID_OUTPUT_REPORT + 1) << 8);
+	dev->cntl_req->wIndex	= cpu_to_le16(iface_desc->desc.bInterfaceNumber);
+	dev->cntl_req->wLength	= cpu_to_le16(YUREX_BUF_SIZE);
+
+	usb_fill_control_urb(dev->cntl_urb, dev->udev,
+			     usb_sndctrlpipe(dev->udev, 0),
+			     (void *)dev->cntl_req, dev->cntl_buffer,
+			     YUREX_BUF_SIZE, yurex_control_callback, dev);
+	dev->cntl_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+
+	/* allocate interrupt URB */
+	dev->urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!dev->urb) {
+		err("Could not allocate URB");
+		goto error;
+	}
+
+	/* allocate buffer for interrupt in */
+	dev->int_buffer = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE,
+					GFP_KERNEL, &dev->urb->transfer_dma);
+	if (!dev->int_buffer) {
+		err("Could not allocate int_buffer");
+		goto error;
+	}
+
+	/* configure interrupt URB */
+	usb_fill_int_urb(dev->urb, dev->udev,
+			 usb_rcvintpipe(dev->udev, dev->int_in_endpointAddr),
+			 dev->int_buffer, YUREX_BUF_SIZE, yurex_interrupt,
+			 dev, 1);
+	dev->cntl_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+	if (usb_submit_urb(dev->urb, GFP_KERNEL)) {
+		retval = -EIO;
+		err("Could not submitting URB");
+		goto error;
+	}
+
+	/* save our data pointer in this interface device */
+	usb_set_intfdata(interface, dev);
+
+	/* we can register the device now, as it is ready */
+	retval = usb_register_dev(interface, &yurex_class);
+	if (retval) {
+		err("Not able to get a minor for this device.");
+		usb_set_intfdata(interface, NULL);
+		goto error;
+	}
+
+	dev->bbu = -1;
+
+	dev_info(&interface->dev,
+		 "USB YUREX device now attached to Yurex #%d\n",
+		 interface->minor);
+
+	return 0;
+
+error:
+	if (dev)
+		/* this frees allocated memory */
+		kref_put(&dev->kref, yurex_delete);
+	return retval;
+}
+
+static void yurex_disconnect(struct usb_interface *interface)
+{
+	struct usb_yurex *dev;
+	int minor = interface->minor;
+
+	dev = usb_get_intfdata(interface);
+	usb_set_intfdata(interface, NULL);
+
+	/* give back our minor */
+	usb_deregister_dev(interface, &yurex_class);
+
+	/* prevent more I/O from starting */
+	mutex_lock(&dev->io_mutex);
+	dev->interface = NULL;
+	mutex_unlock(&dev->io_mutex);
+
+	/* wakeup waiters */
+	kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
+	wake_up_interruptible(&dev->waitq);
+
+	/* decrement our usage count */
+	kref_put(&dev->kref, yurex_delete);
+
+	dev_info(&interface->dev, "USB YUREX #%d now disconnected\n", minor);
+}
+
+static struct usb_driver yurex_driver = {
+	.name =		"yurex",
+	.probe =	yurex_probe,
+	.disconnect =	yurex_disconnect,
+	.id_table =	yurex_table,
+};
+
+
+static int yurex_fasync(int fd, struct file *file, int on)
+{
+	struct usb_yurex *dev;
+
+	dev = (struct usb_yurex *)file->private_data;
+	return fasync_helper(fd, file, on, &dev->async_queue);
+}
+
+static int yurex_open(struct inode *inode, struct file *file)
+{
+	struct usb_yurex *dev;
+	struct usb_interface *interface;
+	int subminor;
+	int retval = 0;
+
+	subminor = iminor(inode);
+
+	interface = usb_find_interface(&yurex_driver, subminor);
+	if (!interface) {
+		err("%s - error, can't find device for minor %d",
+		    __func__, subminor);
+		retval = -ENODEV;
+		goto exit;
+	}
+
+	dev = usb_get_intfdata(interface);
+	if (!dev) {
+		retval = -ENODEV;
+		goto exit;
+	}
+
+	/* increment our usage count for the device */
+	kref_get(&dev->kref);
+
+	/* save our object in the file's private structure */
+	mutex_lock(&dev->io_mutex);
+	file->private_data = dev;
+	mutex_unlock(&dev->io_mutex);
+
+exit:
+	return retval;
+}
+
+static int yurex_release(struct inode *inode, struct file *file)
+{
+	struct usb_yurex *dev;
+
+	dev = (struct usb_yurex *)file->private_data;
+	if (dev == NULL)
+		return -ENODEV;
+
+	yurex_fasync(-1, file, 0);
+
+	/* decrement the count on our device */
+	kref_put(&dev->kref, yurex_delete);
+	return 0;
+}
+
+static ssize_t yurex_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
+{
+	struct usb_yurex *dev;
+	int retval = 0;
+	int bytes_read = 0;
+	char in_buffer[20];
+	unsigned long flags;
+
+	dev = (struct usb_yurex *)file->private_data;
+
+	mutex_lock(&dev->io_mutex);
+	if (!dev->interface) {		/* already disconnected */
+		retval = -ENODEV;
+		goto exit;
+	}
+
+	spin_lock_irqsave(&dev->lock, flags);
+	bytes_read = snprintf(in_buffer, 20, "%lld\n", dev->bbu);
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	if (*ppos < bytes_read) {
+		if (copy_to_user(buffer, in_buffer + *ppos, bytes_read - *ppos))
+			retval = -EFAULT;
+		else {
+			retval = bytes_read - *ppos;
+			*ppos += bytes_read;
+		}
+	}
+
+exit:
+	mutex_unlock(&dev->io_mutex);
+	return retval;
+}
+
+static ssize_t yurex_write(struct file *file, const char *user_buffer, size_t count, loff_t *ppos)
+{
+	struct usb_yurex *dev;
+	int i, set = 0, retval = 0;
+	char buffer[16];
+	char *data = buffer;
+	unsigned long long c, c2 = 0;
+	signed long timeout = 0;
+	DEFINE_WAIT(wait);
+
+	count = min(sizeof(buffer), count);
+	dev = (struct usb_yurex *)file->private_data;
+
+	/* verify that we actually have some data to write */
+	if (count == 0)
+		goto error;
+
+	mutex_lock(&dev->io_mutex);
+	if (!dev->interface) {		/* alreaday disconnected */
+		mutex_unlock(&dev->io_mutex);
+		retval = -ENODEV;
+		goto error;
+	}
+
+	if (copy_from_user(buffer, user_buffer, count)) {
+		mutex_unlock(&dev->io_mutex);
+		retval = -EFAULT;
+		goto error;
+	}
+	memset(dev->cntl_buffer, CMD_PADDING, YUREX_BUF_SIZE);
+
+	switch (buffer[0]) {
+	case CMD_ANIMATE:
+	case CMD_LED:
+		dev->cntl_buffer[0] = buffer[0];
+		dev->cntl_buffer[1] = buffer[1];
+		dev->cntl_buffer[2] = CMD_EOF;
+		break;
+	case CMD_READ:
+	case CMD_VERSION:
+		dev->cntl_buffer[0] = buffer[0];
+		dev->cntl_buffer[1] = 0x00;
+		dev->cntl_buffer[2] = CMD_EOF;
+		break;
+	case CMD_SET:
+		data++;
+		/* FALL THROUGH */
+	case '0' ... '9':
+		set = 1;
+		c = c2 = simple_strtoull(data, NULL, 0);
+		dev->cntl_buffer[0] = CMD_SET;
+		for (i = 1; i < 6; i++) {
+			dev->cntl_buffer[i] = (c>>32) & 0xff;
+			c <<= 8;
+		}
+		buffer[6] = CMD_EOF;
+		break;
+	default:
+		mutex_unlock(&dev->io_mutex);
+		return -EINVAL;
+	}
+
+	/* send the data as the control msg */
+	prepare_to_wait(&dev->waitq, &wait, TASK_INTERRUPTIBLE);
+	dbg("%s - submit %c", __func__, dev->cntl_buffer[0]);
+	retval = usb_submit_urb(dev->cntl_urb, GFP_KERNEL);
+	if (retval >= 0)
+		timeout = schedule_timeout(YUREX_WRITE_TIMEOUT);
+	finish_wait(&dev->waitq, &wait);
+
+	mutex_unlock(&dev->io_mutex);
+
+	if (retval < 0) {
+		err("%s - failed to send bulk msg, error %d", __func__, retval);
+		goto error;
+	}
+	if (set && timeout)
+		dev->bbu = c2;
+	return timeout ? count : -EIO;
+
+error:
+	return retval;
+}
+
+static const struct file_operations yurex_fops = {
+	.owner =	THIS_MODULE,
+	.read =		yurex_read,
+	.write =	yurex_write,
+	.open =		yurex_open,
+	.release =	yurex_release,
+	.fasync	=	yurex_fasync,
+};
+
+
+static int __init usb_yurex_init(void)
+{
+	int result;
+
+	/* register this driver with the USB subsystem */
+	result = usb_register(&yurex_driver);
+	if (result)
+		err("usb_register failed. Error number %d", result);
+
+	return result;
+}
+
+static void __exit usb_yurex_exit(void)
+{
+	/* deregister this driver with the USB subsystem */
+	usb_deregister(&yurex_driver);
+}
+
+module_init(usb_yurex_init);
+module_exit(usb_yurex_exit);
+
+MODULE_LICENSE("GPL");