if (!buffer)
return;
memcpy(buffer, data, len);
usb_control_msg(udev, pipe, request, reqtype, wvalue,
index, buffer, len, 50);
if (!buffer)
return;
memcpy(buffer, data, len);
usb_control_msg(udev, pipe, request, reqtype, wvalue,
index, buffer, len, 50);