diff options
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 24 | ||||
| -rw-r--r-- | include/linux/usb/serial.h | 3 |
2 files changed, 25 insertions, 2 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 62dd92270525..130a57351c69 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1,7 +1,7 @@ /* * USB Serial Converter driver * - * Copyright (C) 1999 - 2005 Greg Kroah-Hartman (greg@kroah.com) + * Copyright (C) 1999 - 2012 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2000 Peter Berger (pberger@brimson.com) * Copyright (C) 2000 Al Borchers (borchers@steinerpoint.com) * @@ -1166,6 +1166,20 @@ int usb_serial_resume(struct usb_interface *intf) } EXPORT_SYMBOL(usb_serial_resume); +static int usb_serial_reset_resume(struct usb_interface *intf) +{ + struct usb_serial *serial = usb_get_intfdata(intf); + int rv; + + serial->suspending = 0; + if (serial->type->reset_resume) + rv = serial->type->reset_resume(serial); + else + rv = usb_serial_generic_resume(serial); + + return rv; +} + static const struct tty_operations serial_ops = { .open = serial_open, .close = serial_close, @@ -1403,6 +1417,14 @@ int usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[] udriver->resume = usb_serial_resume; udriver->probe = usb_serial_probe; udriver->disconnect = usb_serial_disconnect; + + /* we only set the reset_resume field if the serial_driver has one */ + for (sd = serial_drivers; *sd; ++sd) { + if ((*sd)->reset_resume) + udriver->reset_resume = usb_serial_reset_resume; + break; + } + rc = usb_register(udriver); if (rc) return rc; diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index c9f65146a039..86c0b451745d 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -1,7 +1,7 @@ /* * USB Serial Converter stuff * - * Copyright (C) 1999 - 2005 + * Copyright (C) 1999 - 2012 * Greg Kroah-Hartman (greg@kroah.com) * * This program is free software; you can redistribute it and/or modify @@ -249,6 +249,7 @@ struct usb_serial_driver { int (*suspend)(struct usb_serial *serial, pm_message_t message); int (*resume)(struct usb_serial *serial); + int (*reset_resume)(struct usb_serial *serial); /* serial function calls */ /* Called by console and by the tty layer */ |