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Commit d1c0713d authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman
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USB: suspend/resume for opticon driver 



this does the standard support for suspend/resume for the opticon
driver.

Signed-off-by: default avatarOliver Neukum <oneukum@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4901b2c3

drivers/usb/serial/opticon.c

+26 −0
Original line number Diff line number Diff line
@@ -306,11 +306,37 @@ static void opticon_shutdown(struct usb_serial *serial) 
	usb_set_serial_data(serial, NULL);

}



static int opticon_suspend(struct usb_interface *intf, pm_message_t message)

{

	struct usb_serial *serial = usb_get_intfdata(intf);

	struct opticon_private *priv = usb_get_serial_data(serial);



	usb_kill_urb(priv->bulk_read_urb);

	return 0;

}



static int opticon_resume(struct usb_interface *intf)

{

	struct usb_serial *serial = usb_get_intfdata(intf);

	struct opticon_private *priv = usb_get_serial_data(serial);

	struct usb_serial_port *port = serial->port[0];

	int result;



	mutex_lock(&port->mutex);

	if (port->port.count)

		result = usb_submit_urb(priv->bulk_read_urb, GFP_NOIO);

	else

		result = 0;

	mutex_unlock(&port->mutex);

	return result;

}



static struct usb_driver opticon_driver = {

	.name =		"opticon",

	.probe =	usb_serial_probe,

	.disconnect =	usb_serial_disconnect,

	.suspend =	opticon_suspend,

	.resume =	opticon_resume,

	.id_table =	id_table,

	.no_dynamic_id = 	1,

};