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#include <dirent.h>
#include <fcntl.h>
#include <linux/input.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define EP_INPUT_PATH "/dev/input/"
#define EP_INPUT_NAME_SIZE 256
static int ep_select(const struct dirent *ep)
{
if(ep->d_type != DT_CHR)
return 0;
if(!strstr(ep->d_name, "event"))
return 0;
return 1;
}
int main(int argc, char *argv[])
{
struct dirent **eps;
int i;
int n;
int ret = 0;
n = scandir(EP_INPUT_PATH, &eps, ep_select, alphasort);
if (!n) {
perror ("couldn't open the directory");
return -1;
}
for (i = 0; i < n; i++) {
char path[64];
int fd;
char dev_name[EP_INPUT_NAME_SIZE];
sprintf(path, EP_INPUT_PATH "%s", eps[i]->d_name);
fd = open(path, O_RDONLY);
if (fd < 0) {
perror("cannot open file");
return -1;
}
ret = ioctl(fd, EVIOCGNAME(EP_INPUT_NAME_SIZE), dev_name);
if (ret < 0) {
perror("unable to get the name");
} else {
printf("%s is %s\n", eps[i]->d_name, dev_name);
}
close(fd);
}
return 0;
}
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