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| author | Johan Hovold <jhovold@gmail.com> | 2010-03-17 23:05:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-20 13:21:34 -0700 |
| commit | 231543206452f5c42bace54b5c13dfe5a0313812 (patch) | |
| tree | cbefc56d6c37f50c895a37c47161ac5733cda24c /drivers/usb/serial/generic.c | |
| parent | 0f3d5bae2bdacce6c6c1d116809d6b3d50338df7 (diff) | |
| download | kernel_samsung_smdk4412-231543206452f5c42bace54b5c13dfe5a0313812.zip kernel_samsung_smdk4412-231543206452f5c42bace54b5c13dfe5a0313812.tar.gz kernel_samsung_smdk4412-231543206452f5c42bace54b5c13dfe5a0313812.tar.bz2 | |
USB: serial: generalise generic read implementation
Add process_read_urb to usb_serial_driver so that a driver can rely on
the generic read (and throttle) mechanism but still do device specific
processing of incoming data (such as adding tty_flags before pushing to
line discipline).
The default generic implementation handles sysrq for consoles but
otherwise simply pushes to tty.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/generic.c')
| -rw-r--r-- | drivers/usb/serial/generic.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index e16c0b2..176f125 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -408,7 +408,7 @@ int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, } EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urb); -static void usb_serial_generic_process_read_urb(struct urb *urb) +void usb_serial_generic_process_read_urb(struct urb *urb) { struct usb_serial_port *port = urb->context; struct tty_struct *tty; @@ -433,6 +433,7 @@ static void usb_serial_generic_process_read_urb(struct urb *urb) tty_flip_buffer_push(tty); tty_kref_put(tty); } +EXPORT_SYMBOL_GPL(usb_serial_generic_process_read_urb); void usb_serial_generic_read_bulk_callback(struct urb *urb) { @@ -451,7 +452,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data); - usb_serial_generic_process_read_urb(urb); + port->serial->type->process_read_urb(urb); /* Throttle the device if requested by tty */ spin_lock_irqsave(&port->lock, flags); |