diff options
| author | Mike Isely <isely@pobox.com> | 2008-08-31 20:55:03 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 09:36:57 -0200 |
| commit | 26dd1c57a05f5c6d339d55d5317d47576fd2fbc5 (patch) | |
| tree | b1aebbbc3f6701c6caa718cfc92d91b657cf7433 /drivers/media/video/pvrusb2/pvrusb2-ctrl.c | |
| parent | 755879c66bb820ec27e2e02b22b13d3896583efe (diff) | |
| download | linux-26dd1c57a05f5c6d339d55d5317d47576fd2fbc5.tar.gz linux-26dd1c57a05f5c6d339d55d5317d47576fd2fbc5.tar.bz2 linux-26dd1c57a05f5c6d339d55d5317d47576fd2fbc5.zip | |
V4L/DVB (8898): pvrusb2: Be able to programmatically retrieve a control's default value
The pvrusb2 control mechanism up until now has used a constant int to
hold a control's default value. This change makes it possible to
retrieve the control's default through some other means, e.g. as a
result of a query from lower level software.
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-ctrl.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-ctrl.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c index 0764fbfffb73..2741c7b0b537 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c +++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c @@ -134,13 +134,19 @@ int pvr2_ctrl_get_min(struct pvr2_ctrl *cptr) /* Retrieve control's default value (any type) */ -int pvr2_ctrl_get_def(struct pvr2_ctrl *cptr) +int pvr2_ctrl_get_def(struct pvr2_ctrl *cptr, int *valptr) { int ret = 0; if (!cptr) return 0; LOCK_TAKE(cptr->hdw->big_lock); do { if (cptr->info->type == pvr2_ctl_int) { - ret = cptr->info->default_value; + if (cptr->info->get_def_value) { + /* Comment to keep checkpatch.pl quiet */ + ret = cptr->info->get_def_value(cptr, valptr); + } else { + /* Comment to keep checkpatch.pl quiet */ + *valptr = cptr->info->default_value; + } } } while(0); LOCK_GIVE(cptr->hdw->big_lock); return ret; |