From: Eliot Blennerhassett eblennerhassett@audioscience.com
The channel count can be queried to determine which.
Signed-off-by: Eliot Blennerhassett eblennerhassett@audioscience.com --- 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 a97a252..cf5baa2 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;