SNDRV_PCM_IOCTL_WRITEN_FRAMES 602 include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern) SNDRV_PCM_IOCTL_WRITEN_FRAMES 602 tools/include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)