summaryrefslogtreecommitdiffstats
path: root/drivers/usb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/core/devio.c27
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 039ba23..6c4cd82 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -948,8 +948,11 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
int ret, ifnum = -1;
int is_in;
- if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP|USBDEVFS_URB_SHORT_NOT_OK|
- URB_NO_FSBR|URB_ZERO_PACKET))
+ if (uurb->flags & ~(USBDEVFS_URB_ISO_ASAP |
+ USBDEVFS_URB_SHORT_NOT_OK |
+ USBDEVFS_URB_NO_FSBR |
+ USBDEVFS_URB_ZERO_PACKET |
+ USBDEVFS_URB_NO_INTERRUPT))
return -EINVAL;
if (!uurb->buffer)
return -EINVAL;
@@ -1104,8 +1107,24 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
as->urb->pipe = (uurb->type << 30) |
__create_pipe(ps->dev, uurb->endpoint & 0xf) |
(uurb->endpoint & USB_DIR_IN);
- as->urb->transfer_flags = uurb->flags |
- (is_in ? URB_DIR_IN : URB_DIR_OUT);
+
+ /* This tedious sequence is necessary because the URB_* flags
+ * are internal to the kernel and subject to change, whereas
+ * the USBDEVFS_URB_* flags are a user API and must not be changed.
+ */
+ u = (is_in ? URB_DIR_IN : URB_DIR_OUT);
+ if (uurb->flags & USBDEVFS_URB_ISO_ASAP)
+ u |= URB_ISO_ASAP;
+ if (uurb->flags & USBDEVFS_URB_SHORT_NOT_OK)
+ u |= URB_SHORT_NOT_OK;
+ if (uurb->flags & USBDEVFS_URB_NO_FSBR)
+ u |= URB_NO_FSBR;
+ if (uurb->flags & USBDEVFS_URB_ZERO_PACKET)
+ u |= URB_ZERO_PACKET;
+ if (uurb->flags & USBDEVFS_URB_NO_INTERRUPT)
+ u |= URB_NO_INTERRUPT;
+ as->urb->transfer_flags = u;
+
as->urb->transfer_buffer_length = uurb->buffer_length;
as->urb->setup_packet = (unsigned char *)dr;
as->urb->start_frame = uurb->start_frame;
OpenPOWER on IntegriCloud