From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Fri, 19 Jun 2015 14:07:31 +0200
From: Jan Kiszka <jan.kiszka@siemens.com>
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Subject: Re: [Xenomai] RTDM-native brushup
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>, Michael Haberler <haberlerm@gmail.com>
Cc: xenomai <xenomai@xenomai.org>

On 2015-06-19 13:58, Gilles Chanteperdrix wrote:
> 
> Michael Haberler wrote:
>> Jan - thanks! I made minor progress. duh on the mknod..
> 
> Note that it is possible to get devices to be automatically created by
> udev/devtmptfs, I did the exercise once. I think you need the device to be
> instances of a "device class", or something like that.

Exactly, kernel/cobalt/pipe.c contains that pattern, to name just one
example. mknod is only a quick workaround.

> 
> Also note that with the advent of devtmpfs, the complexity of udev, the
> slow down it causes to the boot procses, and its entanglement with
> systemd, devtmpfs is probably a better choice on embedded systems now. If
> you need a larger subset of udev functionality, you can also have a look
> at busybox mdev.
> 

That should be an independent optimization path.

Jan

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