diff options
| author | Eliot Blennerhassett <eblennerhassett@audioscience.com> | 2011-12-22 13:38:34 +1300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-12-22 08:12:58 +0100 |
| commit | d4b06d23ab1c5aefbb1377fb01939b555236f57f (patch) | |
| tree | 0cfc94913edab14208d2f9e91bb957146fd8f72f /sound | |
| parent | c382a5da5cda3e0d8a8f2e8809460285d0a7c1cb (diff) | |
| download | linux-d4b06d23ab1c5aefbb1377fb01939b555236f57f.tar.bz2 | |
ALSA: asihpi - Volumes and meters may have 1 or 2 channels.
The channel count can be queried to determine which.
Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/asihpi/asihpi.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c index 44e6ef3e99cc..6e89e5b83a49 100644 --- a/sound/pci/asihpi/asihpi.c +++ b/sound/pci/asihpi/asihpi.c @@ -1410,6 +1410,7 @@ static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { u32 h_control = kcontrol->private_value; + u32 count; u16 err; /* native gains are in millibels */ short min_gain_mB; @@ -1424,8 +1425,12 @@ static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol, step_gain_mB = VOL_STEP_mB; } + err = hpi_meter_query_channels(h_control, &count); + if (err) + count = HPI_MAX_CHANNELS; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 2; + uinfo->count = count; uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB; uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB; uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB; @@ -2033,8 +2038,15 @@ static int __devinit snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi, static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { + u32 h_control = kcontrol->private_value; + u32 count; + u16 err; + err = hpi_meter_query_channels(h_control, &count); + if (err) + count = HPI_MAX_CHANNELS; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = HPI_MAX_CHANNELS; + uinfo->count = count; uinfo->value.integer.min = 0; uinfo->value.integer.max = 0x7FFFFFFF; return 0; |