snd_pcm_uframes_t 144 include/sound/asound.h typedef unsigned long snd_pcm_uframes_t; snd_pcm_uframes_t 474 include/sound/asound.h SNDRV_PCM_IOCTL_REWIND = _IOW('A', 0x46, snd_pcm_uframes_t), snd_pcm_uframes_t 477 include/sound/asound.h SNDRV_PCM_IOCTL_FORWARD = _IOW('A', 0x49, snd_pcm_uframes_t),