mirror of git://git.suckless.org/sbase
56 lines
967 B
C
56 lines
967 B
C
|
/* See LICENSE file for copyright and license details. */
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <limits.h>
|
||
|
|
#include "util.h"
|
||
|
|
|
||
|
|
static void lsusb(const char *file);
|
||
|
|
|
||
|
|
static void
|
||
|
|
usage(void)
|
||
|
|
{
|
||
|
|
eprintf("usage: %s\n", argv0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
ARGBEGIN {
|
||
|
|
default:
|
||
|
|
usage();
|
||
|
|
} ARGEND;
|
||
|
|
|
||
|
|
recurse("/sys/bus/usb/devices", lsusb);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
lsusb(const char *file)
|
||
|
|
{
|
||
|
|
FILE *fp;
|
||
|
|
char *cwd;
|
||
|
|
char path[PATH_MAX];
|
||
|
|
char buf[BUFSIZ];
|
||
|
|
int busnum, devnum, pid, vid;
|
||
|
|
int i = 0;
|
||
|
|
|
||
|
|
cwd = agetcwd();
|
||
|
|
snprintf(path, sizeof(path), "%s/%s/uevent", cwd, file);
|
||
|
|
free(cwd);
|
||
|
|
if (!(fp = fopen(path, "r")))
|
||
|
|
return;
|
||
|
|
while (fgets(buf, sizeof(buf), fp)) {
|
||
|
|
if (sscanf(buf, "BUSNUM=%u\n", &busnum) ||
|
||
|
|
sscanf(buf, "DEVNUM=%u\n", &devnum) ||
|
||
|
|
sscanf(buf, "PRODUCT=%x/%x/", &pid, &vid))
|
||
|
|
i++;
|
||
|
|
if (i == 3) {
|
||
|
|
printf("Bus %03d Device %03d: ID %04x:%04x\n", busnum, devnum,
|
||
|
|
pid, vid);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
fclose(fp);
|
||
|
|
}
|
||
|
|
|