From 4ad6de0b3f5d050b70e4c94a0cc8b26503f8cf28 Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Mon, 13 Oct 2008 10:35:51 +0100 Subject: usb: fix pl2303 initialization This patch removes the private check for the termios_initialized for the pl2303 usb driver. It forced the baud to 9600 on the first call to pl2303_set_termios() Based on the tty changes in the 2.6.27 kernel, the termios passed to the *_set_termios functions is always populated the first time. This means there is no need to privately initialize the settings the first time, and doing so will not allow the use of the kernel parameter "console=ttyUSB0,115200" as an example. Signed-off-by: Jason Wessel Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/usb/serial/pl2303.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers/usb/serial/pl2303.c') diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 1ede144..8d600689 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -154,7 +154,6 @@ struct pl2303_private { wait_queue_head_t delta_msr_wait; u8 line_control; u8 line_status; - u8 termios_initialized; enum pl2303_type type; }; @@ -526,16 +525,6 @@ static void pl2303_set_termios(struct tty_struct *tty, dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); - if (!priv->termios_initialized) { - *(tty->termios) = tty_std_termios; - tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; - tty->termios->c_ispeed = 9600; - tty->termios->c_ospeed = 9600; - priv->termios_initialized = 1; - } - spin_unlock_irqrestore(&priv->lock, flags); - /* The PL2303 is reported to lose bytes if you change serial settings even to the same values as before. Thus we actually need to filter in this specific case */ -- cgit v1.1 From 4a90f09b20f4622dcbff1f0e1e6bae1704f8ad8c Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 13 Oct 2008 10:39:46 +0100 Subject: tty: usb-serial krefs Use kref in the USB serial drivers so that we don't free tty structures from under the URB receive handlers as has historically been the case if you were unlucky. This also gives us a framework for general tty drivers to use tty_port objects and refcount. Contains two err->dev_err changes merged together to fix clashes in the -next tree. Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/usb/serial/pl2303.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/usb/serial/pl2303.c') diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 8d600689..9084378 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -1046,7 +1046,7 @@ static void pl2303_read_bulk_callback(struct urb *urb) tty_flag = TTY_FRAME; dbg("%s - tty_flag = %d", __func__, tty_flag); - tty = port->port.tty; + tty = tty_port_tty_get(&port->port); if (tty && urb->actual_length) { tty_buffer_request_room(tty, urb->actual_length + 1); /* overrun is special, not associated with a char */ @@ -1056,7 +1056,7 @@ static void pl2303_read_bulk_callback(struct urb *urb) tty_insert_flip_char(tty, data[i], tty_flag); tty_flip_buffer_push(tty); } - + tty_kref_put(tty); /* Schedule the next read _if_ we are still open */ if (port->port.count) { urb->dev = port->serial->dev; -- cgit v1.1 From c197a8db59daf06dc5e77acd5a9681329cb22458 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 18 Aug 2008 13:21:04 -0700 Subject: USB: remove info() macro from usb/serial drivers USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/pl2303.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/serial/pl2303.c') diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 9084378..491c885 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -1147,7 +1147,7 @@ static int __init pl2303_init(void) retval = usb_register(&pl2303_driver); if (retval) goto failed_usb_register; - info(DRIVER_DESC); + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n"); return 0; failed_usb_register: usb_serial_deregister(&pl2303_device); -- cgit v1.1