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Commit d1b5342c authored by Marc Dietrich's avatar Marc Dietrich Committed by Greg Kroah-Hartman
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staging: nvec: ps2: add suspend/resume functions 



This adds suspend and resume functions to the nvec_ps2 mouse driver.

During suspend the nvec sends a "Cancel all mouse events" command. If
this is missed, there will be still some bytes in the received buffer
after resume which make the mouse go out of sync.

Signed-off-by: default avatarMarc Dietrich <marvin24@gmx.de>
Signed-off-by: default avatarJulian Andres Klode <jak@jak-linux.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 5f356a67

drivers/staging/nvec/nvec_ps2.c

+19 −0
Original line number Diff line number Diff line
@@ -111,8 +111,27 @@ static int __devinit nvec_mouse_probe(struct platform_device *pdev) 
	return 0;

}



static int nvec_mouse_suspend(struct platform_device *pdev, pm_message_t state)

{

	struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent);



	/* send cancel autoreceive */

	nvec_write_async(nvec, "\x06\x04", 2);



	return 0;

}



static int nvec_mouse_resume(struct platform_device *pdev)

{

	ps2_startstreaming(ps2_dev.ser_dev);



	return 0;

}



static struct platform_driver nvec_mouse_driver = {

	.probe  = nvec_mouse_probe,

	.suspend = nvec_mouse_suspend,

	.resume = nvec_mouse_resume,

	.driver = {

		.name = "nvec-mouse",

		.owner = THIS_MODULE,