字符驱动测试程序-卷积神经网络的数学推导

时间:2024-06-29 07:17:43
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文件名称:字符驱动测试程序-卷积神经网络的数学推导

文件大小:8.6MB

文件格式:PDF

更新时间:2024-06-29 07:17:43

周立功 嵌入式 Linux

程序清单 2.18 字符驱动测试程序 1 #include 2 #include 3 #include 4 #include 5 #include 6 #include 7 8 #define DEV_NAME "/dev/char_cdev" 9 10 int main(int argc, char *argv[]) 11 { 12 int i; 13 int fd = 0; 14 int dat = 0; 15 16 fd = open (DEV_NAME, O_RDWR); 17 if (fd < 0) { 18 perror("Open "DEV_NAME" Failed!\n"); 19 exit(1); 20 } 21 22 i = read(fd, &dat, 1); 23 if (!i) { 24 perror("read "DEV_NAME" Failed!\n"); 25 exit(1); 26 } 27 28 dat = 0; 29 i = write(fd, &dat, 1); 30 if (!i) { 31 perror("write "DEV_NAME" Failed!\n"); 32 exit(1); 33 } 34 35 i = ioctl(fd, NULL, NULL); 36 if (!!i) { 37 perror("ioctl "DEV_NAME" Failed!\n"); 38 exit(1); 39 } 40


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