Re: [PATCHv6 4/3] v4l2-dev: disable frequency and tuner ioctls for touch

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Hans,

Thank you for the patch.

On Mon, Oct 14, 2019 at 02:01:05PM +0200, Hans Verkuil wrote:
> Touch devices have obviously no tuner, so don't attempt to enable those ioctls
> for such devices.

Shouldn't this be disabled for pure metadata devices (is_meta &&
!is_vid) too ?

> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
> ---
> diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
> index cec588b04711..da42d172714a 100644
> --- a/drivers/media/v4l2-core/v4l2-dev.c
> +++ b/drivers/media/v4l2-core/v4l2-dev.c
> @@ -581,8 +581,10 @@ static void determine_valid_ioctls(struct video_device *vdev)
>  		set_bit(_IOC_NR(VIDIOC_TRY_EXT_CTRLS), valid_ioctls);
>  	if (vdev->ctrl_handler || ops->vidioc_querymenu)
>  		set_bit(_IOC_NR(VIDIOC_QUERYMENU), valid_ioctls);
> -	SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
> -	SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
> +	if (!is_tch) {
> +		SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
> +		SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
> +	}
>  	SET_VALID_IOCTL(ops, VIDIOC_LOG_STATUS, vidioc_log_status);
>  #ifdef CONFIG_VIDEO_ADV_DEBUG
>  	set_bit(_IOC_NR(VIDIOC_DBG_G_CHIP_INFO), valid_ioctls);
> @@ -754,7 +756,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
>  		SET_VALID_IOCTL(ops, VIDIOC_G_MODULATOR, vidioc_g_modulator);
>  		SET_VALID_IOCTL(ops, VIDIOC_S_MODULATOR, vidioc_s_modulator);
>  	}
> -	if (is_rx) {
> +	if (is_rx && !is_tch) {
>  		/* receiver only ioctls */
>  		SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);
>  		SET_VALID_IOCTL(ops, VIDIOC_S_TUNER, vidioc_s_tuner);
> 

-- 
Regards,

Laurent Pinchart



[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]

  Powered by Linux