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Message-ID: <427235F5.8040907@byu.net>
Date: Fri, 29 Apr 2005 07:26:13 -0600
From: Eric Blake <ebb9 AT byu DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: can't access Serial Ports
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According to Igor Pechtchanski on 4/28/2005 2:59 PM:
> /dev is currently a virtual directory in Cygwin.  Try "ls -l /dev/ttyS1"
> -- you should get a listing.  If you want Tab-completion, or if you want
> "find /" to look at the devices in /dev, you can create the /dev directory
> and even populate it with dummy (and real) directory entries -- see
> <http://www.cygwin.com/cygwin-ug-net/using-specialnames.html> for a script
> to do this.  Otherwise, don't bother.

Igor, your create devices script is a bit out-of-date; for example, it
doesn't create /dev/full.  And would creating /dev as a managed mount
point to /cygdrive/?/cygwin/dev allow you to create a dummy /dev/com1?

Also, why are you using touch(1) instead of mknod(1)?  When accessed as
/dev/*, the listing is correct, but when accessed via
/cygdrive/?/cygwin/dev, the difference is apparent.  Compare:

$ cd /cygdrive/c/cygwin/dev
$ touch full
$ mknod -m 666 null c 1 3
$ ls -lF
total 2
- -rw-r--r--  1 eblake None    0 Apr 29 06:40 full
srw-rw-rw-  1 SYSTEM root   53 Apr 28 06:08 log=
crw-rw-rw-  1 eblake None 1, 3 Apr 29 06:40 null
$ ls -lF /dev
total 1
crw--w--w-  1 eblake None 1, 7 Apr 29 06:45 full
srw-rw-rw-  1 SYSTEM root   53 Apr 28 06:08 log=
crw-rw-rw-  1 eblake None 1, 3 Apr 29 06:45 null

It looks like the relatively new syslogd is responsible for /dev/log.

- --
Life is short - so eat dessert first!

Eric Blake             ebb9 AT byu DOT net
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