- info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *(spec->stream_analog_playback);
- info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dac_nids[0];
- info->stream[SNDRV_PCM_STREAM_CAPTURE] = *(spec->stream_analog_capture);
- info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];
-
- info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = 0;
- for (i = 0; i < spec->num_channel_mode; i++) {
- if (spec->channel_mode[i].channels > info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max) {
- info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = spec->channel_mode[i].channels;
+ if (spec->stream_analog_playback) {
+ snd_assert(spec->multiout.dac_nids, return -EINVAL);
+ info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *(spec->stream_analog_playback);
+ info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dac_nids[0];
+ }
+ if (spec->stream_analog_capture) {
+ snd_assert(spec->adc_nids, return -EINVAL);
+ info->stream[SNDRV_PCM_STREAM_CAPTURE] = *(spec->stream_analog_capture);
+ info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];
+ }
+
+ if (spec->channel_mode) {
+ info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = 0;
+ for (i = 0; i < spec->num_channel_mode; i++) {
+ if (spec->channel_mode[i].channels > info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max) {
+ info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max = spec->channel_mode[i].channels;
+ }