From: Marc Dietrich <[email protected]> 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: Marc Dietrich <[email protected]> Signed-off-by: Julian Andres Klode <[email protected]> --- drivers/staging/nvec/nvec_ps2.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c index 742f5cc..4410dfb 100644 --- a/drivers/staging/nvec/nvec_ps2.c +++ b/drivers/staging/nvec/nvec_ps2.c @@ -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, -- 1.7.7.3 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
