SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS  976 include/uapi/sound/asound.h #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS  976 tools/include/uapi/sound/asound.h #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)