On Sat, Jul 19, 2014 at 03:10:43PM +0200, David Herrmann wrote:
> This ioctl is the counterpart to EVIOCGVERSION and returns the
> uinput-version the kernel was compiled with.
>
> Reviewed-by: Peter Hutterer <peter.hutte...@who-t.net>
> Signed-off-by: David Herrmann <dh.herrm...@gmail.com>
Applied, thank you.
> ---
> drivers/input/misc/uinput.c | 6 ++++++
> include/uapi/linux/uinput.h | 9 +++++++++
> 2 files changed, 15 insertions(+)
>
> diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
> index 615324c..a2a3895 100644
> --- a/drivers/input/misc/uinput.c
> +++ b/drivers/input/misc/uinput.c
> @@ -722,6 +722,12 @@ static long uinput_ioctl_handler(struct file *file,
> unsigned int cmd,
> }
>
> switch (cmd) {
> + case UI_GET_VERSION:
> + if (put_user(UINPUT_VERSION,
> + (unsigned int __user*)p))
> + retval = -EFAULT;
> + goto out;
> +
> case UI_DEV_CREATE:
> retval = uinput_create_device(udev);
> goto out;
> diff --git a/include/uapi/linux/uinput.h b/include/uapi/linux/uinput.h
> index 0389b48..19339cf 100644
> --- a/include/uapi/linux/uinput.h
> +++ b/include/uapi/linux/uinput.h
> @@ -84,6 +84,15 @@ struct uinput_ff_erase {
> */
> #define UI_GET_SYSNAME(len) _IOC(_IOC_READ, UINPUT_IOCTL_BASE, 300, len)
>
> +/**
> + * UI_GET_VERSION - Return uinput version of the kernel
> + *
> + * This writes the kernel's uinput version into the integer pointed to by the
> + * ioctl argument. The uinput-version is hard-coded in the kernel and
> + * independent of the uinput device.
> + */
> +#define UI_GET_VERSION _IOR(UINPUT_IOCTL_BASE, 301, unsigned int)
> +
> /*
> * To write a force-feedback-capable driver, the upload_effect
> * and erase_effect callbacks in input_dev must be implemented.
> --
> 2.0.2
>
--
Dmitry
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