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| author | Oliver Neukum <oneukum@suse.de> | 2010-07-15 18:16:39 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-07-15 18:30:43 +0200 |
| commit | ed4299e1b173f111ac0c40d6617e47fbff02b52f (patch) | |
| tree | 58af5375a47c5ef324fe090eea8c60165a581525 | |
| parent | Input: Add ATMEL QT602240 touchscreen driver (diff) | |
| download | linux-ed4299e1b173f111ac0c40d6617e47fbff02b52f.tar.xz linux-ed4299e1b173f111ac0c40d6617e47fbff02b52f.zip | |
Input: usbtouchscreen - implement basic suspend/resume
This implements basic support for suspend & resume.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Tested-by: Petr Štetiar <ynezz@true.cz>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 25 |
1 files changed, 25 insertions, 0 deletions
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, }; |