CH341a LED clock: retry the transfer when libusb fails with status LIBUSB_ERROR_PIPE.
CH341a LED clock: retry the transfer when libusb fails with status LIBUSB_ERROR_PIPE.

sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource,sergev/vak-opensource