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alsamixer: add 8-channel support

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Add support for playback volume controls with 8 channels.
This allows controlling the side channels on 7.1 devices.
This commit is contained in:
Clemens Ladisch 2008-01-07 12:28:43 +01:00
parent b0828653c9
commit fb1c2d53a1
1 changed files with 3 additions and 1 deletions
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4
alsamixer/alsamixer.c
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@ -209,6 +209,7 @@ static struct snd_mixer_selem_regopt mixer_options;
enum {
MIXER_ELEM_FRONT, MIXER_ELEM_REAR,
MIXER_ELEM_CENTER, MIXER_ELEM_WOOFER,
MIXER_ELEM_SIDE,
MIXER_ELEM_CAPTURE,
MIXER_ELEM_ENUM, MIXER_ELEM_CAPTURE_ENUM,
MIXER_ELEM_END
@ -226,6 +227,7 @@ static snd_mixer_selem_channel_id_t mixer_elem_chn[][2] = {
{ SND_MIXER_SCHN_REAR_LEFT, SND_MIXER_SCHN_REAR_RIGHT },
{ SND_MIXER_SCHN_FRONT_CENTER, SND_MIXER_SCHN_UNKNOWN },
{ SND_MIXER_SCHN_WOOFER, SND_MIXER_SCHN_UNKNOWN },
{ SND_MIXER_SCHN_SIDE_LEFT, SND_MIXER_SCHN_SIDE_RIGHT },
{ SND_MIXER_SCHN_FRONT_LEFT, SND_MIXER_SCHN_FRONT_RIGHT },
};
@ -1752,7 +1754,7 @@ __again:
if (elem == NULL)
CHECK_ABORT (ERR_FCN, "snd_mixer_find_selem()", -EINVAL);
if ( (mixer_view == VIEW_PLAYBACK) || (mixer_view == VIEW_CHANNELS) ) {
for (i = MIXER_ELEM_FRONT; i <= MIXER_ELEM_WOOFER; i++) {
for (i = MIXER_ELEM_FRONT; i <= MIXER_ELEM_SIDE; i++) {
int ok;
for (j = ok = 0; j < 2; j++) {
if (mixer_changed_state)