From ed4299e1b173f111ac0c40d6617e47fbff02b52f Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 15 Jul 2010 09:16:39 -0700 Subject: Input: usbtouchscreen - implement basic suspend/resume MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This implements basic support for suspend & resume. Signed-off-by: Oliver Neukum Tested-by: Petr Štetiar Tested-by: Ondrej Zary Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/usbtouchscreen.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'drivers/input/touchscreen/usbtouchscreen.c') diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index b9cee2738adb..9cda660ee7bb 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -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, }; -- cgit v1.2.3