CHANNEL_1
page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
#define RIGHT_CHANNEL CHANNEL_1
cdp->au.port[1].channels = CHANNEL_1;
error = acd_setchan(dev, CHANNEL_0|CHANNEL_1, CHANNEL_0|CHANNEL_1, 0,0);
error = acd_setchan(dev, CHANNEL_0, CHANNEL_1, 0, 0);
error = acd_setchan(dev, CHANNEL_1, CHANNEL_1, 0, 0);