The reader does have a unique serial number but it is only an external sticker and not on the readers internal EEPROM. Perhaps you can write the serial number to the reader somehow.
Smartcard reader ACR122U has no unique serial number
题
I am using the PCSC driver and the javax.smartcardio library as the wrapper to the driver. I have 3 ACR122U devices plugged into a Linux (debian) system. I have ran udevadm info on the devices and they all have a serial number of 0. I need to identify which reader is which in my class. I can check which topological usb port is used by parsing the /sys/devices folder but I still cant "select" a device in the Java api.
Does anyone know a way to modify the PCSC device stack order or something. So that I can specify which order the devices are in the terminal list from the terminal factory. I have emailed ACS asking them why the serial numbers are 0 and if they can help me to modify it but I have had no reply.
Please let me know if anyone thinks they have a solution. Thanks, Mitch
没有正确的解决方案
其他提示