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DragonFly users List (threaded) for 2006-05
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Re: Newbie scsi question

From: "Karthik Subramanian" <karthik301176@xxxxxxxxx>
Date: Thu, 4 May 2006 22:10:33 +0530

Hi Hans,

udev is not a fix to this, it is the cause. You actually can use udev
to get stable device nodes. Most distros don't care, though. The linux
kernel provides a stable addressing in sysfs. udev should be configured
to use this and not just enumerate serially. So the problem isn't there
"in the first place". Device node creation is already a userland task
in linux and I can't see nothing wrong with that.

Possible bad choice of words on my part - what I meant to say was this - you *have* to configure udev under linux - perhaps write a udev rule that says "if the device id is such-and-such, then make the device accessible by this name". You don't need to do that under Solaris, it's solved much more elegantly. At least, for self-identifying devices.

This will probably be a design question for dfbsd as well for the devfs
reimplementation: What gets done in the kernel and what's left for
userland when it gets to device naming?

I for one will be eagerly awaiting the answer to this question :)


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