From 082afb7c4ee6ce0c1c0451816bf2c5a747fc51b1 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Date: Thu, 29 Oct 2015 08:10:31 -0200 Subject: [PATCH] [media] media/usb/pvrusb2: Support for V4L2_CTRL_WHICH_DEF_VAL This driver does not use the control infrastructure. Add support for the new field which on structure v4l2_ext_controls Acked-by: Mike Isely Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/pvrusb2/pvrusb2-v4l2.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c index 1c5f85bf7ed4..81f788b7b242 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c @@ -628,6 +628,7 @@ static int pvr2_g_ext_ctrls(struct file *file, void *priv, struct pvr2_v4l2_fh *fh = file->private_data; struct pvr2_hdw *hdw = fh->channel.mc_head->hdw; struct v4l2_ext_control *ctrl; + struct pvr2_ctrl *cptr; unsigned int idx; int val; int ret; @@ -635,8 +636,15 @@ static int pvr2_g_ext_ctrls(struct file *file, void *priv, ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; - ret = pvr2_ctrl_get_value( - pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id), &val); + cptr = pvr2_hdw_get_ctrl_v4l(hdw, ctrl->id); + if (cptr) { + if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL) + pvr2_ctrl_get_def(cptr, &val); + else + ret = pvr2_ctrl_get_value(cptr, &val); + } else + ret = -EINVAL; + if (ret) { ctls->error_idx = idx; return ret; @@ -658,6 +666,10 @@ static int pvr2_s_ext_ctrls(struct file *file, void *priv, unsigned int idx; int ret; + /* Default value cannot be changed */ + if (ctls->which == V4L2_CTRL_WHICH_DEF_VAL) + return -EINVAL; + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx;