On 02/05/2018 03:29 PM, Florian Echtler wrote:
> Signed-off-by: Florian Echtler <f...@butterbrot.org>
Please add a change log when you make a patch.
I for one would like to know why this has to be supplied as a module option.
Some documentation in the code would be helpful as well (e.g. I have no idea
what a 'vsvideo' is).
Regards,
Hans
> ---
> drivers/input/touchscreen/sur40.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/drivers/input/touchscreen/sur40.c
> b/drivers/input/touchscreen/sur40.c
> index c4b7cf1..d612f3f 100644
> --- a/drivers/input/touchscreen/sur40.c
> +++ b/drivers/input/touchscreen/sur40.c
> @@ -173,6 +173,14 @@ int sur40_v4l2_contrast = SUR40_CONTRAST_DEF; /*
> blacklevel */
> int sur40_v4l2_gain = SUR40_GAIN_DEF; /* gain */
> int sur40_v4l2_backlight = 1; /* preprocessor */
>
> +/* module parameters */
> +static uint irlevel = SUR40_BRIGHTNESS_DEF;
> +module_param(irlevel, uint, 0644);
> +MODULE_PARM_DESC(irlevel, "set default irlevel");
> +static uint vsvideo = SUR40_VSVIDEO_DEF;
> +module_param(vsvideo, uint, 0644);
> +MODULE_PARM_DESC(vsvideo, "set default vsvideo");
> +
> static const struct v4l2_pix_format sur40_pix_format[] = {
> {
> .pixelformat = V4L2_TCH_FMT_TU08,
> @@ -372,6 +380,11 @@ static void sur40_open(struct input_polled_dev *polldev)
>
> dev_dbg(sur40->dev, "open\n");
> sur40_init(sur40);
> +
> + /* set default values */
> + sur40_set_irlevel(sur40, irlevel);
> + sur40_set_vsvideo(sur40, vsvideo);
> + sur40_set_preprocessor(sur40, SUR40_BACKLIGHT_DEF);
> }
>
> /* Disable device, polling has stopped. */
>
