Frank Morgner

sorry, I don't understand your problem. please share your steps for reproducing the problem.

Your installation seems to be working as intended. vpcd is not a command line program, it is a smart card driver, which according to your pcsc_scan output is loaded correctly...

Your problem sounds interesting and I think it cannot be solved with out-of-the box mechanisms from PC/SC. I assume you would like to distinguish between different clients that are either...

A ping followed by an ACK would be possible, but in my opinion it is not worth the optimization. The size of a transmit only matters if it leads to...

When talking about "sessions", there is 1. clients connecting to a card (SCardConnect/SCardDisconnect) 2. clients requesting exclusive access to a token (SCardBeginTransaction/SCardEndTransaction) 3. cards deleting volatile information (power on/off or...

Maybe @LudovicRousseau can give some information on whether SCardConnect/SCardDisconnect and/or SCardBeginTransaction/SCardEndTransaction can be detected by a reader driver. I am not aware of any marker that could be used here....

forwarding requests from [IFDHSetProtocolParameters()](https://pcsclite.apdu.fr/api/group__IFDHandler.html#gaa6fc195cb450a147550f4671492257ad) from vpcd to vicc would be easily implemented and seems like a good indicator for detecting new client connections. However, that may still lead to a...

great, thank you!

nice find, thank you

Since we are using `pkcs11-tool` as developer tool, I think it is OK to have various (maybe incomplete) switches for actions, even if some actions may be activated in different...