200 

   201 ssize_t ec_device_id_print(const ec_device_id_t *dev_id, char *buffer)

   202 {

   203     off_t off = 0;

   204     unsigned int i;

   205     

   206     switch (dev_id->type) {

   207         case ec_device_id_empty:

   208             off += sprintf(buffer + off, "none");

   209             break;

   210         case ec_device_id_mac:

   211             off += sprintf(buffer + off, "MAC ");

   212             for (i = 0; i < ETH_ALEN; i++) {

   213                 off += sprintf(buffer + off, "%02X", dev_id->octets[i]);

   214                 if (i < ETH_ALEN - 1) off += sprintf(buffer + off, ":");

   215             }

   216             break;

   217     }

   218 

   219     return off;

   220 }

   221                 

   222 /*****************************************************************************/