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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2019-07-20 13:47:07 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-07-25 12:26:49 +0200 |
| commit | 173f6eacc8a89ae4b08b166735930e6c46951a81 (patch) | |
| tree | 97313fe4f31b98cc50dd506c8ca96d8f5b5c08cc /include/media | |
| parent | media: hdpvr: Add device num check and handling (diff) | |
| download | linux-173f6eacc8a89ae4b08b166735930e6c46951a81.tar.xz linux-173f6eacc8a89ae4b08b166735930e6c46951a81.zip | |
media: v4l: ctrls: Add debug messages
Currently, the v4l2 control code is a bit silent on errors.
Add debug messages on (hopefully) most of the error paths.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-ctrls.h | 9 | ||||
| -rw-r--r-- | include/media/v4l2-ioctl.h | 2 |
2 files changed, 9 insertions, 2 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 6e9dc9c44bb1..570ff4b0205a 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -1268,25 +1268,28 @@ int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, * :ref:`VIDIOC_G_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl * * @hdl: pointer to &struct v4l2_ctrl_handler + * @vdev: pointer to &struct video_device * @mdev: pointer to &struct media_device * @c: pointer to &struct v4l2_ext_controls * * If hdl == NULL then they will all return -EINVAL. */ -int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct media_device *mdev, - struct v4l2_ext_controls *c); +int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct video_device *vdev, + struct media_device *mdev, struct v4l2_ext_controls *c); /** * v4l2_try_ext_ctrls - Helper function to implement * :ref:`VIDIOC_TRY_EXT_CTRLS <vidioc_g_ext_ctrls>` ioctl * * @hdl: pointer to &struct v4l2_ctrl_handler + * @vdev: pointer to &struct video_device * @mdev: pointer to &struct media_device * @c: pointer to &struct v4l2_ext_controls * * If hdl == NULL then they will all return -EINVAL. */ int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl, + struct video_device *vdev, struct media_device *mdev, struct v4l2_ext_controls *c); @@ -1296,12 +1299,14 @@ int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl, * * @fh: pointer to &struct v4l2_fh * @hdl: pointer to &struct v4l2_ctrl_handler + * @vdev: pointer to &struct video_device * @mdev: pointer to &struct media_device * @c: pointer to &struct v4l2_ext_controls * * If hdl == NULL then they will all return -EINVAL. */ int v4l2_s_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, + struct video_device *vdev, struct media_device *mdev, struct v4l2_ext_controls *c); diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index 400f2e46c108..4bba65a59d46 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -602,6 +602,8 @@ struct v4l2_ioctl_ops { #define V4L2_DEV_DEBUG_STREAMING 0x08 /* Log poll() */ #define V4L2_DEV_DEBUG_POLL 0x10 +/* Log controls */ +#define V4L2_DEV_DEBUG_CTRL 0x20 /* Video standard functions */ |