diff options
| -rw-r--r-- | sound/usb/mixer.c | 4 | ||||
| -rw-r--r-- | sound/usb/mixer.h | 1 | ||||
| -rw-r--r-- | sound/usb/mixer_quirks.c | 16 |
3 files changed, 20 insertions, 1 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 298070e8f2d4..b0fc6ae037a2 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -382,6 +382,8 @@ error: static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret) { + validx += cval->idx_off; + return (cval->mixer->protocol == UAC_VERSION_1) ? get_ctl_value_v1(cval, request, validx, value_ret) : get_ctl_value_v2(cval, request, validx, value_ret); @@ -432,6 +434,8 @@ int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, unsigned char buf[2]; int idx = 0, val_len, err, timeout = 10; + validx += cval->idx_off; + if (cval->mixer->protocol == UAC_VERSION_1) { val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; } else { /* UAC_VERSION_2 */ diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index a7f3d45a8acf..aab80df201bd 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -43,6 +43,7 @@ struct usb_mixer_elem_info { unsigned int id; unsigned int control; /* CS or ICN (high byte) */ unsigned int cmask; /* channel mask bitmap: 0 = master */ + unsigned int idx_off; /* Control index offset */ unsigned int ch_readonly; unsigned int master_readonly; int channels; diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index ae2b71435220..4199b97e76a1 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -63,11 +63,12 @@ static void usb_mixer_elem_free(struct snd_kcontrol *kctl) * Since there doesn't seem to be a devices that needs a multichannel * version, we keep it mono for simplicity. */ -static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer, +static int snd_create_std_mono_ctl_offset(struct usb_mixer_interface *mixer, unsigned int unitid, unsigned int control, unsigned int cmask, int val_type, + unsigned int idx_off, const char *name, snd_kcontrol_tlv_rw_t *tlv_callback) { @@ -85,6 +86,7 @@ static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer, cval->channels = 1; cval->control = control; cval->cmask = cmask; + cval->idx_off = idx_off; /* get_min_max() is called only for integer volumes later, * so provide a short-cut for booleans */ @@ -120,6 +122,18 @@ static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer, return 0; } +static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer, + unsigned int unitid, + unsigned int control, + unsigned int cmask, + int val_type, + const char *name, + snd_kcontrol_tlv_rw_t *tlv_callback) +{ + return snd_create_std_mono_ctl_offset(mixer, unitid, control, cmask, + val_type, 0 /* Offset */, name, tlv_callback); +} + /* * Create a set of standard UAC controls from a table */ |