diff options
Diffstat (limited to 'drivers/media/radio/radio-si470x.c')
| -rw-r--r-- | drivers/media/radio/radio-si470x.c | 33 |
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 |