Hi Arthur,
I just took a look at the patch you tried to submit to usb-ccid. I think the PC_to_RDR_GetSlotStatus failure with LIBUSB_ERROR_TIMEOUT issue has been resolved as of WS 12.5.
I'm looking at the incorrect dwFeatures issue and have ordered a gemalto readers for testing. Will update you as soon as I fix it.
Thanks again for reporting the issue.
Lance