#endif
devh = usb_open (dev);
/* usb_open can return NULL if device isn't accessible. This is default behaviour for libusb-1 compatibility API */
if (!devh)
return 0;
/* get string descriptor at 0xEE */
ret = usb_get_descriptor (devh, 0x03, 0xee, buf, sizeof(buf));
if (ret > 0) gp_log_data("get_MS_OSD",buf, ret);