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xen-devel
Re: [Xen-devel] /dev/tty1 and udev
> On Wed, Sep 29, 2004 at 08:45:50AM +0100, Ian Pratt wrote:
> > Does anyone have a pointer to some documentation on udev? The
> > OLS2003 paper doesn't go into any detail of what drivers need to
> > do.
>
> It's done through hotplug and sysfs. Drivers need to export a
> /sys/...../dev file and produce a hotplug event when they're registered.
> udev then gets called by hotplug and reads the /sys/....../dev file and
> creates a node based on that and a userspace database of device->name
> correlations.
>
> Personally though I still prefer devfs.
Integrating devfs into our frontend block-device driver looked like it
would be a pain in the arse, and not worth the effort since it is
obsolescent.
I hope that sysfs/udev will be easier to deal with from our point of
view. :-)
-- Keir
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