Date: Sat, 20 Mar 2004 06:20:08 +0100 From: Bernd Walter <ticso@cicely12.cicely.de> To: arch@freebsd.org Subject: Opinions about using USB serial numbers Message-ID: <20040320052007.GC33602@cicely12.cicely.de>
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I have a lot to do with systems using many USB devices of the same kind. Currently device are named acording to their probing order. That result in the problematic that device names can change after reboot or replugging in different order. I would like to add functionality for creating alias devnodes including the serial numbers (if the device has one setup). E.g. for a ucom(4) device you will get /dev/ucom0 and ucom.serialnumber. If the device has no serial numer there will be just /dev/ucom0 as befor. Another solution could be to create the nodes in a tree form: /dev/usbchannel0/hubport1/pubport2/ucom That would work for devices without serial numbers too, but I personally dislike this way. -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de
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