diff options
| 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 /include | |
| parent | 0f3d5bae2bdacce6c6c1d116809d6b3d50338df7 (diff) | |
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 'include')
| -rw-r--r-- | include/linux/usb/serial.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 53f6dc65e87..ff8872eba3a 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -272,6 +272,8 @@ struct usb_serial_driver { void (*write_int_callback)(struct urb *urb); void (*read_bulk_callback)(struct urb *urb); void (*write_bulk_callback)(struct urb *urb); + /* Called by the generic read bulk callback */ + void (*process_read_urb)(struct urb *urb); }; #define to_usb_serial_driver(d) \ container_of(d, struct usb_serial_driver, driver) @@ -323,6 +325,7 @@ extern int usb_serial_generic_register(int debug); extern void usb_serial_generic_deregister(void); extern int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags); +extern void usb_serial_generic_process_read_urb(struct urb *urb); extern int usb_serial_handle_sysrq_char(struct tty_struct *tty, struct usb_serial_port *port, unsigned int ch); |