Dominique Dumont wrote: > Manu Abraham <manu@xxxxxxxxxxx> writes: > > >>No, the problem is many cards (hardware) do not support query. Trying >>to do a read on those hardware has strange effects. > > > On other words, you're shooting in the dark when it comes to debug the > communication between Twinhan cards and CAM. > On a majority of cards, yes, debugging the communication between the MCU and the driver is a nightmare. The driver has to a validation of the message before sending to the MCU. Manu