diff options
| author | Mike Isely <isely@pobox.com> | 2006-06-25 20:04:44 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-27 00:17:28 -0300 |
| commit | a761f4311b3e31008c7d168c3a8c254a9c7e35ac (patch) | |
| tree | 03817e0334a6e019251a3483dc8147a418caabb5 /drivers/media/video/pvrusb2/pvrusb2-hdw.c | |
| parent | 332139635a8c0431cc2eb67adf1e983eb96728e3 (diff) | |
V4L/DVB (4240): Various V4L control enhancements in pvrusb2
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 7d46bc10179..f461830c64c 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -1988,7 +1988,7 @@ struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_id(struct pvr2_hdw *hdw, } -/* Given an ID, retrieve the control structure associated with it. */ +/* Given a V4L ID, retrieve the control structure associated with it. */ struct pvr2_ctrl *pvr2_hdw_get_ctrl_v4l(struct pvr2_hdw *hdw,unsigned int ctl_id) { struct pvr2_ctrl *cptr; @@ -2005,6 +2005,30 @@ struct pvr2_ctrl *pvr2_hdw_get_ctrl_v4l(struct pvr2_hdw *hdw,unsigned int ctl_id } +/* Given a V4L ID for its immediate predecessor, retrieve the control + structure associated with it. */ +struct pvr2_ctrl *pvr2_hdw_get_ctrl_nextv4l(struct pvr2_hdw *hdw, + unsigned int ctl_id) +{ + struct pvr2_ctrl *cptr,*cp2; + unsigned int idx; + int i; + + /* This could be made a lot more efficient, but for now... */ + cp2 = 0; + for (idx = 0; idx < hdw->control_cnt; idx++) { + cptr = hdw->controls + idx; + i = cptr->info->v4l_id; + if (!i) continue; + if (i <= ctl_id) continue; + if (cp2 && (cp2->info->v4l_id < i)) continue; + cp2 = cptr; + } + return cp2; + return 0; +} + + static const char *get_ctrl_typename(enum pvr2_ctl_type tp) { switch (tp) { |