udev (userspace /dev) is a device manager for the Linux kernel. As the successor of devfsd and hotplug, udev primarily manages device nodes in the /dev directory.
Source: https://en.wikipedia.org/wiki/Udev
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Add custom udev rules so devices can be identified after unpluging and re-pluging,
This way USB devices will always get the same meaningful device name.
You can see that the build-in USB port of the Icom 705 and 7600 both
uses the same chip, hence idVendor and idProduct are the same.
We can however made the distinction based on the serial number.
For example, if there are three devices that frequently plug into USB
an Icom 7300, an Icom 705, and custom GPS receiver, then add:
Add the symbolic name of our interface in 99-persistent-usb.rules.
After a reboot, the system will create a symbolic link:
Or what ever order the serial devices have been allocated.
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