Published at LXer:

Today we dive into writing custom udev rules. Why would you want to acquire this strange knowledge? Because, believe it or not, computers are not yet perfect, so sometimes we must fix them. USB scanners are notorious examples of needing human intervention to be usable by non-root users. Managing device permissions is something you're bound to bump into sooner or later – the traditional Unix method of user and group permissions no longer works on udev-managed devices. USB devices are moving targets that take on different names if you don't nail them down. If you want to give them friendly, memorable names, you'll need to know how to configure udev.

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