android_kernel_samsung_sm8650-modules/include/uapi/audio/linux/avtimer.h

#ifndef _UAPI_AVTIMER_H
#define _UAPI_AVTIMER_H

#include <linux/ioctl.h>
#include <linux/types.h>

#define MAJOR_NUM 100

#define IOCTL_GET_AVTIMER_TICK _IOR(MAJOR_NUM, 0, __u64)

#endif