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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-08-08 15:34:19 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 15:36:48 +0400 |
| commit | 1e55126666944c83bf98243564e25302f363e2a4 (patch) | |
| tree | dd86e6c7cb97d5fd49f739dffe42cf7666e7332b /include/media/v4l2-common.h | |
| parent | 69028d7096a6092812f0482833f0820593f1cafd (diff) | |
| download | linux-1e55126666944c83bf98243564e25302f363e2a4.tar.xz | |
V4L/DVB (8637): v4l2: add v4l2_ctrl_query_menu_valid_items support function
v4l2_ctrl_query_menu_valid_items() makes it easy to handle control menus
that have a lot of invalid 'holes'. For example, many MPEG encoders only
support a limited subset of audio bitrates. In that case a driver can
specify an array listing the set of valid bitrates and pass that to
this function.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-common.h')
| -rw-r--r-- | include/media/v4l2-common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 8b678e0d46e3..0c195ccd45d2 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -82,6 +82,8 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl); int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl, const char **menu_items); +#define V4L2_CTRL_MENU_IDS_END (0xffffffff) +int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids); u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id); /* ------------------------------------------------------------------------- */ |