diff options
| author | Oliver Neukum <oneukum@suse.de> | 2007-04-27 20:54:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-07-12 16:29:44 -0700 |
| commit | ec22559e0b7a05283a3413bda5d177e42c950e23 (patch) | |
| tree | 5f7a9ae8907cdf910532381111ce4b8aae877e05 /drivers/usb/serial/generic.c | |
| parent | dd172d72addefd89795e819cc2cc3eb1b9d12a7f (diff) | |
USB: suspend support for usb serial
this implements generic support for suspend/resume for usb serial.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
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 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 4f8282ad772..b90ef3f70f4 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -69,6 +69,7 @@ struct usb_serial_driver usb_serial_generic_device = { .shutdown = usb_serial_generic_shutdown, .throttle = usb_serial_generic_throttle, .unthrottle = usb_serial_generic_unthrottle, + .resume = usb_serial_generic_resume, }; static int generic_probe(struct usb_interface *interface, @@ -169,6 +170,23 @@ static void generic_cleanup (struct usb_serial_port *port) } } +int usb_serial_generic_resume(struct usb_serial *serial) +{ + struct usb_serial_port *port; + int i, c = 0, r; + + for (i = 0; i < serial->num_ports; i++) { + port = serial->port[i]; + if (port->open_count && port->read_urb) { + r = usb_submit_urb(port->read_urb, GFP_NOIO); + if (r < 0) + c++; + } + } + + return c ? -EIO : 0; +} + void usb_serial_generic_close (struct usb_serial_port *port, struct file * filp) { dbg("%s - port %d", __FUNCTION__, port->number); |