29 lines
554 B
C
29 lines
554 B
C
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#define DEVICE_NAME "/dev/temp_monitor"
|
|
#define IOCTL_GET_TEMP _IOR('t', 1, int)
|
|
|
|
int main() {
|
|
int fd;
|
|
int temp;
|
|
|
|
fd = open(DEVICE_NAME, O_RDONLY);
|
|
if (fd < 0) {
|
|
perror("Failed to open the device");
|
|
return -1;
|
|
}
|
|
|
|
if (ioctl(fd, IOCTL_GET_TEMP, &temp) < 0) {
|
|
perror("Failed to get temperature");
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
printf("Current CPU Temperature: %d°C\n", temp);
|
|
|
|
close(fd);
|
|
return 0;
|
|
} |