man/hwdb-usb-device.c

   1 #include <stdio.h>
   2 #include <stdint.h>
   3 #include <sd-hwdb.h>
   4
   5 int print_usb_properties(uint16_t vid, uint16_t pid) {
   6   char match[15];
   7   sd_hwdb *hwdb;
   8   const char *key, *value;
   9   int r;
  10
  11   /* Match this USB vendor and product ID combination */
  12   snprintf(match, sizeof match, "usb:v%04Xp%04X", vid, pid);
  13
  14   r = sd_hwdb_new(&hwdb);
  15   if (r < 0)
  16     return r;
  17
  18   SD_HWDB_FOREACH_PROPERTY(hwdb, match, key, value)
  19     printf("%s: \"%s\" → \"%s\"\n", match, key, value);
  20
  21   sd_hwdb_unref(hwdb);
  22   return 0;
  23 }
  24
  25 int main(int argc, char **argv) {
  26   print_usb_properties(0x046D, 0xC534);
  27   return 0;
  28 }