snd_pcm_hw_rule   218 include/sound/pcm.h struct snd_pcm_hw_rule;
snd_pcm_hw_rule   220 include/sound/pcm.h 				      struct snd_pcm_hw_rule *rule);
snd_pcm_hw_rule   237 include/sound/pcm.h 	struct snd_pcm_hw_rule *rules;