linux udev rule on removal, need more information to take action
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user3696153
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I have a USB serial port using FTDI chips (actually about 10 of them).
Each of these create a /dev/tun type network device.
What works:
I can seem to get the ACTION="add" rules to work, when the ADD occurs - things are great, the ENV{ID_SERIAL_SHORT} can be used to match the USB device to the intended purpose. Thus, on insert - I can run a script to that brings up that specific /dev/tun network interface and configure it accordingly.
What does not work:
However, the ACTION="remove" lacks sufficient information, for example I'd like to use the FTDI chip serial number (ie: ENV{ID_SERIAL_SHORT}) to know which interface to tear down. What I get is the SYSPATH... I need the SERIAL NUMBER
Suggestions?
udev usbserial