getSerialNumberString method
Implementation
Future<String?> getSerialNumberString({int max = 256}) async {
String? res = null;
using((Arena arena) {
var buffer = allocateWString(max, allocator: arena);
int ret = _getSerialNumberString(this._device, buffer, max);
if(ret == 0) { res = fromWString(buffer); }
});
return res;
}