Newsgroups: comp.unix.sysv386
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!email!swdsrv.edvz.univie.ac.at!wu-wien.ac.at!mah
From: mah@wu-wien.ac.at (Michael Haberler)
Subject: STREAMS programming question, Data Link layer
Message-ID: <1991Jun9.002848.1402@swdsrv.edvz.univie.ac.at>
Sender: news@swdsrv.edvz.univie.ac.at
Nntp-Posting-Host: parrot.prv.univie.ac.at
Reply-To: mah@wu-wien.ac.at
Organization: Vienna University Computer Center
Date: Sun, 9 Jun 1991 00:28:48 GMT


I'm trying to find out how to access the minor number returned by
a clone open call of a STREAMS device driver. In particular, I've gone 
through the ATT SV/386 3.2 STREAMS programmers guide and made a kernel
with the loopback example driver. 

This is a clonable driver, and it's properly called with the CLONEOPEN
flag. It also allocates a unused minor number.

There's no user-level example which shows how to get at the minor number.

I tried fstat() on the open file, but that gives me the same minor number
on two different clone opens. What's the canonical way to do this?

thanks for any hint,

-michael

-- 
Michael Haberler 		mah@wu-wien.ac.at,  mah@awiwuw11.bitnet
University of Economics and Business Administration
A-1090 Vienna, Augasse 2-6	    Biz:    +43 (1) 31336 x4796 Fax: 347-555
Home: +43 (1) 961-679 (voice & fax) D-Netz: +43 (663) 811-056