path: root/include/media
diff options
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2009-03-13 06:08:20 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:21 -0300
commit025c18a19d7d7eb8745d25986f982a5f35a85157 (patch)
treeeeca0bd36addeddf1a123f9af26d132a2c94979c /include/media
parente802967c7079d2b4cfbd107dc90812605dbcad5a (diff)
V4L/DVB (11027): soc-camera: configure drivers with a default format at probe time
Currently soc-camera doesn't set up any image format without an explicit S_FMT. According to the API this should be supported, for example, capture-example.c from v4l2-apps by default doesn't issue an S_FMT. This patch moves negotiating of available host-camera format translations to probe() time, and restores the state from the last close() on the next open(). This is needed for some drivers, which power down or reset hardware after the last user closes the interface. This patch also has a nice side-effect of avoiding multiple allocation anf freeing of format translation tables. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
1 files changed, 1 insertions, 0 deletions
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index e9eb60740aa..013c81875d7 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -45,6 +45,7 @@ struct soc_camera_device {
int num_formats;
struct soc_camera_format_xlate *user_formats;
int num_user_formats;
+ enum v4l2_field field; /* Preserve field over close() */
struct module *owner;
void *host_priv; /* Per-device host private data */
/* soc_camera.c private count. Only accessed with .video_lock held */