[thirdparty/systemd.git] / man / hwdb-usb-device.c

/* SPDX-License-Identifier: MIT-0 */

#define _GNU_SOURCE 1
#include <stdio.h>
#include <stdint.h>
#include <systemd/sd-hwdb.h>

int print_usb_properties(uint16_t vid, uint16_t pid) {
  char match[128];
  sd_hwdb *hwdb;
  const char *key, *value;
  int r;

  /* Match this USB vendor and product ID combination */
  snprintf(match, sizeof match, "usb:v%04Xp%04X", vid, pid);

  r = sd_hwdb_new(&hwdb);
  if (r < 0)
    return r;

  SD_HWDB_FOREACH_PROPERTY(hwdb, match, key, value)
    printf("%s: \"%s\" → \"%s\"\n", match, key, value);

  sd_hwdb_unref(hwdb);
  return 0;
}

int main(int argc, char **argv) {
  print_usb_properties(0x046D, 0xC534);
  return 0;
}
Commit	Line	Data
1fe6d37e	1	/* SPDX-License-Identifier: MIT-0 */
f4d74c61	2
040cb664	3	#define _GNU_SOURCE 1
32c4d2ba ZJS	4	#include <stdio.h>
32c4d2ba ZJS	5	#include <stdint.h>
2548ce6a	6	#include <systemd/sd-hwdb.h>
32c4d2ba ZJS	7
32c4d2ba ZJS	8	int print_usb_properties(uint16_t vid, uint16_t pid) {
06d0dcc0	9	char match[128];
32c4d2ba ZJS	10	sd_hwdb *hwdb;
	11	const char key, value;
	12	int r;
	13
	14	/* Match this USB vendor and product ID combination */
06d0dcc0	15	snprintf(match, sizeof match, "usb:v%04Xp%04X", vid, pid);
32c4d2ba ZJS	16
	17	r = sd_hwdb_new(&hwdb);
	18	if (r < 0)
	19	return r;
	20
	21	SD_HWDB_FOREACH_PROPERTY(hwdb, match, key, value)
	22	printf("%s: \"%s\" → \"%s\"\n", match, key, value);
	23
	24	sd_hwdb_unref(hwdb);
	25	return 0;
	26	}
	27
	28	int main(int argc, char **argv) {
	29	print_usb_properties(0x046D, 0xC534);
	30	return 0;
	31	}