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Re: [Xen-devel] /dev/tty1 and udev

To: mike@xxxxxxxxxxxx
Subject: Re: [Xen-devel] /dev/tty1 and udev
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Thu, 30 Sep 2004 09:59:34 +0100
Cc: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, James Harper <JamesH@xxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 30 Sep 2004 10:17:04 +0100
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In-reply-to: Your message of "Wed, 29 Sep 2004 16:09:40 PDT." <20040929230939.GF726@xxxxxxxxxxxxxxxx>
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> 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

I hope that sysfs/udev will be easier to deal with from our point of
view. :-)

 -- Keir

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