2011/8/7 Sebastian Schmidt <[email protected]>: > Upstream commit r4987 ("Use libusb-1.0 instead of libusb-0.1") breaks > communication with my reader (REINER SCT cyberJack RFID basis, USB > 0c4b:9102). > > When sending an APDU to the reader, e.g. via scriptor, libccid hangs > while waiting for data from the reader. > > The pcscd log shows: > 00000009 APDU: 60 > 00000010 ifdhandler.c:1283:IFDHTransmitToICC() > usb:0c4b/9102:libudev:0:/dev/bus/usb/002/047 (lun: 0) > 00000018 commands.c:1456:CmdXfrBlockAPDU_extended() T=0 (extended): 1 bytes > 00000020 -> 000000 6F 01 00 00 00 00 0C 00 00 00 60 > 00006239 <- 000000 80 00 00 00 00 00 0C 80 02 00 80 08 00 00 00 00 0C 00 00 > 00 AF 04 01 01 01 00 16 05 > 00000025 commands.c:1391:CCID_Receive() Time extension requested: 0x02 > (now hangs there) > > So what's happening is that libusb_bulk_transfer in ReadUSB returns two > messages at once, CCID_Receive calls ReadUSB again but the data already > has been read. For some reason this used to be different with libusb > 0.x - I have no idea whether this is a timing issue or what not:
Can you reproduce the problem with a "recent" libusb? Try with the version available at http://ludovicrousseau.blogspot.com/2011/05/new-version-of-libusb-part-2.html Thanks -- Dr. Ludovic Rousseau -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
