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Subject: Re: Device numbers, Cygwin vs. Linux
From: "Yaakov (Cygwin/X)" <yselkowitz AT users DOT sourceforge DOT net>
To: cygwin <cygwin AT cygwin DOT com>
Date: Wed, 03 Aug 2011 23:31:54 -0500
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On Wed, 2011-08-03 at 21:33 -0500, Yaakov (Cygwin/X) wrote:
> I'm working on /proc/devices, but upon comparing to Linux[1], I
> noticed some differences in character device numbering:
> 
> * /dev/tty
> Linux is 5,0, Cygwin is 3,0
> 
> * /dev/tty[N]
> Linux is 4,[N], Cygwin 136,N (major 136 is /dev/pts/N on Linux)
> 
> * /dev/console
> Linux is 5,1, Cygwin is 3,0 (same as /dev/tty !)
> 
> * /dev/ttyS[N]
> Linux is 4,[N+64], Cygwin is 117,[N]
> 
> Why these differences?

One more:

* /dev/clipboard and /dev/windows are in major device 13, which on Linux
is for input devices (joysticks, mice, event queues).  Wouldn't major
device 10 ("misc") be a better place for them?


Yaakov



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