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-rw-r--r--drivers/media/radio/radio-si470x.c33
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c
index 2f680268c54..31da21a38f2 100644
--- a/drivers/media/radio/radio-si470x.c
+++ b/drivers/media/radio/radio-si470x.c
@@ -1176,7 +1176,6 @@ static const struct file_operations si470x_fops = {
* si470x_v4l2_queryctrl - query control
*/
static struct v4l2_queryctrl si470x_v4l2_queryctrl[] = {
-/* HINT: the disabled controls are only here to satify kradio and such apps */
{
.id = V4L2_CID_AUDIO_VOLUME,
.type = V4L2_CTRL_TYPE_INTEGER,
@@ -1187,18 +1186,6 @@ static struct v4l2_queryctrl si470x_v4l2_queryctrl[] = {
.default_value = 15,
},
{
- .id = V4L2_CID_AUDIO_BALANCE,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
- {
- .id = V4L2_CID_AUDIO_BASS,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
- {
- .id = V4L2_CID_AUDIO_TREBLE,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
- {
.id = V4L2_CID_AUDIO_MUTE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mute",
@@ -1207,10 +1194,6 @@ static struct v4l2_queryctrl si470x_v4l2_queryctrl[] = {
.step = 1,
.default_value = 1,
},
- {
- .id = V4L2_CID_AUDIO_LOUDNESS,
- .flags = V4L2_CTRL_FLAG_DISABLED,
- },
};
@@ -1267,21 +1250,29 @@ static int si470x_vidioc_s_input(struct file *file, void *priv, unsigned int i)
static int si470x_vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
- unsigned char i;
+ unsigned char i = 0;
int retval = -EINVAL;
- /* safety checks */
- if (!qc->id)
+ /* abort if qc->id is below V4L2_CID_BASE */
+ if (qc->id < V4L2_CID_BASE)
goto done;
+ /* search video control */
for (i = 0; i < ARRAY_SIZE(si470x_v4l2_queryctrl); i++) {
if (qc->id == si470x_v4l2_queryctrl[i].id) {
memcpy(qc, &(si470x_v4l2_queryctrl[i]), sizeof(*qc));
- retval = 0;
+ retval = 0; /* found */
break;
}
}
+ /* disable unsupported base controls */
+ /* to satisfy kradio and such apps */
+ if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
+ qc->flags = V4L2_CTRL_FLAG_DISABLED;
+ retval = 0;
+ }
+
done:
if (retval < 0)
printk(KERN_WARNING DRIVER_NAME