LEFT_PORT
page->audio.port[LEFT_PORT].channels =
arg->vol[LEFT_PORT] =
page->audio.port[LEFT_PORT].volume;
page->audio.port[LEFT_PORT].channels = CHANNEL_0;
page->audio.port[LEFT_PORT].volume =
arg->vol[LEFT_PORT];
page->audio.port[LEFT_PORT].channels =
page->audio.port[LEFT_PORT].channels =
page->audio.port[LEFT_PORT].channels = 0;
page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;