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This commit is contained in:
Jaroslav Kysela 1998-08-31 14:21:06 +00:00
parent 2ae16fb30d
commit 82fc81e31e
3 changed files with 11 additions and 11 deletions
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8
doc/soundapi-4.html
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@ -228,11 +228,11 @@ void *handle;
snd_mixer_info_t info;
snd_mixer_channel_t channel;
if ( (err = snd_mixer_open( &handle, card, device )) < 0 ) {
if ( (err = snd_mixer_open( &handle, card, device )) < 0 ) {
fprintf( stderr, "open failed: %s\n", snd_strerror( err ) );
return;
}
if ( (err = snd_mixer_info( handle, &info )) < 0 ) {
if ( (err = snd_mixer_info( handle, &info )) < 0 ) {
fprintf( stderr, "info failed: %s\n", snd_strerror( err ) );
snd_mixer_close( handle );
return;
@ -241,13 +241,13 @@ printf( "Installed MIXER channels for card #i and device %i: %i\n",
card + 1, device, info.channels );
master = snd_mixer_channel( handle, SND_MIXER_ID_MASTER );
if ( master >= 0 ) {
if ( (err = snd_mixer_read( handle, master, &channel )) < 0 ) {
if ( (err = snd_mixer_read( handle, master, &channel )) < 0 ) {
fprintf( stderr, "master read failed: %s\n", snd_strerror( err ) );
snd_mixer_close( handle );
return;
}
channel -> left = channel -> right = 50;
if ( (err = snd_mixer_write( handle, master, &channel )) < 0 ) {
if ( (err = snd_mixer_write( handle, master, &channel )) < 0 ) {
fprintf( stderr, "master write failed: %s\n", snd_strerror( err ) );
snd_mixer_close( handle );
return;