* /dev Questions
@ 2003-05-01 14:56 Scott Robert Ladd
2003-05-01 15:08 ` Michael Buesch
2003-05-01 16:01 ` Greg KH
0 siblings, 2 replies; 4+ messages in thread
From: Scott Robert Ladd @ 2003-05-01 14:56 UTC (permalink / raw)
To: Linux Kernel Mailing List
Why does /dev include devices that do not exist?
Wouldn't it be friendlier to only list existing devices?
Or am I missing something obvious?
--
Scott Robert Ladd
Coyote Gulch Productions (http://www.coyotegulch.com)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: /dev Questions
2003-05-01 14:56 /dev Questions Scott Robert Ladd
@ 2003-05-01 15:08 ` Michael Buesch
2003-05-02 14:58 ` Scott Robert Ladd
2003-05-01 16:01 ` Greg KH
1 sibling, 1 reply; 4+ messages in thread
From: Michael Buesch @ 2003-05-01 15:08 UTC (permalink / raw)
To: Scott Robert Ladd; +Cc: linux-kernel
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On Thursday 01 May 2003 16:56, Scott Robert Ladd wrote:
> Why does /dev include devices that do not exist?
>
> Wouldn't it be friendlier to only list existing devices?
>
> Or am I missing something obvious?
yea, you're missing devfs. :)
- --
Regards Michael Büsch
http://www.8ung.at/tuxsoft
17:07:51 up 1:47, 2 users, load average: 1.01, 1.09, 0.99
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: /dev Questions
2003-05-01 14:56 /dev Questions Scott Robert Ladd
2003-05-01 15:08 ` Michael Buesch
@ 2003-05-01 16:01 ` Greg KH
1 sibling, 0 replies; 4+ messages in thread
From: Greg KH @ 2003-05-01 16:01 UTC (permalink / raw)
To: Scott Robert Ladd; +Cc: Linux Kernel Mailing List
On Thu, May 01, 2003 at 10:56:12AM -0400, Scott Robert Ladd wrote:
> Why does /dev include devices that do not exist?
/dev is only a bunch of device nodes that knows nothing about any
devices physically present in the system.
devfs creates a dynamic filesystem that is managed by the kernel that
only shows the devices present in the kernel at that point in time.
udev attempts to manage a /dev partition from userspace by watching all
of the hotplug events coming from the kernel that announce device
removal and additions.
Hope this helps,
greg k-h
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2003-05-01 14:56 /dev Questions Scott Robert Ladd
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