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Date:	Fri, 9 Nov 2001 10:48:28 +0100
From:	Corinna Vinschen <cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: [Q] mknod: function not implemented
Message-ID:	<20011109104828.R1099@cygbert.vinschen.de>
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References:	<F90aSONpAcW6VFtjGW900020ec8 AT hotmail DOT com>
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In-Reply-To:	<F90aSONpAcW6VFtjGW900020ec8@hotmail.com>; from coffeenocreamnosugar@hotmail.com on Fri, Nov 09, 2001 at 05:11:55AM +0000

On Fri, Nov 09, 2001 at 05:11:55AM +0000, K ?? wrote:
> 
>  Hi
> 
>  after using mknod ' mknod -m 0666 /devttyS0 ........ '
>  I got this message " mknod: function not implemented "
> 
>  Is there anyother way to make device file with cygwin.?
>  I was porting a device driver..

Cygwin has no idea about device drivers.  The /dev devices
in Cygwin are just POSIX layer fakes on top of standard
Win32 functions.  `mknod' doesn't work in Cygwin.

If you're really writing a device driver, you have two
ways to go:

- If it's a device driver for a functionality which is
  already available using Win32 calls and you just want
  to use it in Cygwin, look into the Cygwin sources and
  contribute a new fhandler_dev_foo.

- If you're writing a real, low level device driver, you
  have to use Microsoft's DDK and MSDN to write e.g. a WDM
  driver.  This is completely out of Cygwin's focus.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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