int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime,
unsigned int cond,
snd_pcm_hw_param_t var,
- struct snd_pcm_hw_constraint_list *l);
+ const struct snd_pcm_hw_constraint_list *l);
int snd_pcm_hw_constraint_ratnums(struct snd_pcm_runtime *runtime,
unsigned int cond,
snd_pcm_hw_param_t var,
const char *snd_pcm_format_name(snd_pcm_format_t format);
+/**
+ * Get a string naming the direction of a stream
+ */
+static inline const char *snd_pcm_stream_str(struct snd_pcm_substream *substream)
+{
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ return "Playback";
+ else
+ return "Capture";
+}
+
#endif /* __SOUND_PCM_H */