智能卡读卡器 ACR122U 没有唯一的序列号 [英] Smartcard reader ACR122U has no unique serial number

问题描述

我使用 PCSC 驱动程序和 javax.smartcardio 库作为驱动程序的包装器.我有 3 个 ACR122U 设备插入 Linux (debian) 系统.我已经在这些设备上运行了 udevadm 信息，它们的序列号都是 0.我需要确定我班上的哪个阅读器.我可以通过解析/sys/devices 文件夹来检查使用了哪个拓扑 USB 端口，但我仍然无法在 Java api 中选择"设备.

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.

有谁知道修改 PCSC 设备堆栈顺序或其他东西的方法.这样我就可以指定设备在终端工厂的终端列表中的顺序.我已经给 ACS 发了电子邮件，问他们为什么序列号是 0，他们是否可以帮助我修改它，但我没有回复.

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.

如果有人认为他们有解决方案，请告诉我.谢谢，米奇

Please let me know if anyone thinks they have a solution. Thanks, Mitch

推荐答案

读卡器有一个唯一的序列号，但它只是一个外部贴纸，并没有在读卡器内部 EEPROM 上.也许您可以通过某种方式将序列号写入阅读器.

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.

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