SNDCTL_DSP_CHANNELS
if (ioctl(config->fd, SNDCTL_DSP_CHANNELS, &tmp) < 0)
rc = ioctl(fd, SNDCTL_DSP_CHANNELS, &tmp);
err = ioctl(audio_fd, SNDCTL_DSP_CHANNELS, &channels);
SNDCTL_DSP_RESET, SNDCTL_DSP_SETFMT, SNDCTL_DSP_CHANNELS,
if (ioctl(c->oss_fd, SNDCTL_DSP_CHANNELS, &v) < 0) {