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Commit ed4299e1 authored by Oliver Neukum's avatar Oliver Neukum Committed by Dmitry Torokhov
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Input: usbtouchscreen - implement basic suspend/resume 



This implements basic support for suspend & resume.

Signed-off-by: default avatarOliver Neukum <oneukum@suse.de>
Tested-by: default avatarPetr Štetiar <ynezz@true.cz>
Tested-by: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 4cf51c38

drivers/input/touchscreen/usbtouchscreen.c

+25 −0
Original line number Diff line number Diff line
@@ -1296,6 +1296,29 @@ static void usbtouch_close(struct input_dev *input) 
		usb_kill_urb(usbtouch->irq);

}



static int usbtouch_suspend

(struct usb_interface *intf, pm_message_t message)

{

	struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);



	usb_kill_urb(usbtouch->irq);



	return 0;

}



static int usbtouch_resume(struct usb_interface *intf)

{

	struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);

	struct input_dev *input = usbtouch->input;

	int result = 0;



	mutex_lock(&input->mutex);

	if (input->users || usbtouch->type->irq_always)

		result = usb_submit_urb(usbtouch->irq, GFP_NOIO);

	mutex_unlock(&input->mutex);



	return result;

}



static void usbtouch_free_buffers(struct usb_device *udev,

				  struct usbtouch_usb *usbtouch)
@@ -1486,6 +1509,8 @@ static struct usb_driver usbtouch_driver = { 
	.name		= "usbtouchscreen",

	.probe		= usbtouch_probe,

	.disconnect	= usbtouch_disconnect,

	.suspend	= usbtouch_suspend,

	.resume		= usbtouch_resume,

	.id_table	= usbtouch_devices,

};