Troubleshooting and debugging

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So here are some step by step instructions to find your problem:

If you try to use a USB device, please try this:

In all cases:

If you are using a usb smart card reader, and openct-tool does not list it: What is that readers USB vendor and product id? lsusb will tell you. Edit /etc/openct.conf and /etc/hotplug/usb/openct.usermap, check if that entry is listed, and add it if not. If the reader works after doing this, please contact opensc-devel@opensc.org, so we can add that id to OpenCT.