[PATCH 1/3] usbtouchscreen: Implement basic suspend/resume
From: Oliver Neukum <hidden>
Date: 2010-06-07 13:13:17
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
From f7c1e2f15bab537c487f935f0701f01705afc90d Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org> Date: Mon, 7 Jun 2010 11:41:15 +0200 Subject: [PATCH 1/3] usbtouchscreen: Implement basic suspend/resume This implements basic support for suspend & resume Signed-off-by: Oliver Neukum <redacted> --- drivers/input/touchscreen/usbtouchscreen.c | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 567d572..6d23c0e 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c@@ -1291,6 +1291,27 @@ 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) + 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)
@@ -1481,6 +1502,8 @@ static struct usb_driver usbtouch_driver = { .name = "usbtouchscreen", .probe = usbtouch_probe, .disconnect = usbtouch_disconnect, + .suspend = usbtouch_suspend, + .resume = usbtouch_resume, .id_table = usbtouch_devices, };
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1.6.4.2