diff options
| author | Mike Isely <isely@pobox.com> | 2009-03-07 01:57:25 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:43:38 -0300 |
| commit | 27764726a8fa72a7e8a7cdccbe9e4425747a96fa (patch) | |
| tree | 86415f280dd8423781d17ce723e245cfaa2b60fb /drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c | |
| parent | 5e430ca5d25e99f99c055bc43f8f140722a643b8 (diff) | |
V4L/DVB (11194): pvrusb2: Implement mechanism to force a full sub-device update
When a pvrusb2 driver instance first initializes, we need to be sure
to send out a complete state update for everything to all attached
modules. The old i2c layer did this by keeping a separate mask of
"stale" bits for each attached module - and setting that mask to all
stale when that module attaches. But the new sub-device adaptation
I've implemented here no longer has per-module stale bits. So instead
there's now a global "force dirty" bit that is set upon instance
initialization, before the sub-devices are attached. After the first
update, this bit is cleared, allowing for normal update-on-dirty
behavior. In this manner, we ensure that all sub-devices have been
properly synchronized at initialization.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c index 725f391cda5f..5adbf00323e5 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c +++ b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c @@ -325,7 +325,7 @@ int pvr2_i2c_cx2584x_v4l_setup(struct pvr2_hdw *hdw, void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) { pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update..."); - if (hdw->input_dirty) { + if (hdw->input_dirty || hdw->force_dirty) { struct v4l2_routing route; enum cx25840_video_input vid_input; enum cx25840_audio_input aud_input; |