From owner-freebsd-hackers  Mon Dec  2 16:14:44 1996
Return-Path: owner-hackers
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id QAA23329
          for hackers-outgoing; Mon, 2 Dec 1996 16:14:44 -0800 (PST)
Received: from nlanr.net (oceana.sdsc.edu [132.249.40.200])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id QAA23319
          for <hackers@FreeBSD.org>; Mon, 2 Dec 1996 16:14:41 -0800 (PST)
Received: (from tony@localhost) by nlanr.net (8.7.3/8.7.3) id QAA15245 for hackers@FreeBSD.org; Mon, 2 Dec 1996 16:14:35 -0800 (PST)
From: Tony Sterrett <tony@nlanr.net>
Message-Id: <199612030014.QAA15245@nlanr.net>
Subject: Driver help
To: hackers@FreeBSD.org
Date: Mon, 2 Dec 1996 16:14:35 -0800 (PST)
X-Mailer: ELM [version 2.4 PL24 PGP3 *ALPHA*]
Content-Type: text
Sender: owner-hackers@FreeBSD.org
X-Loop: FreeBSD.org
Precedence: bulk


How does one address the u for a driver. I have the code
which copies into the u area but how do I declare it.
Tony
{
	dev_t base;
	struct cdevsw *cdev;

	while (u.u_count)
	  {
	    if (copyout (&testmsg[u.u_offset % sizeof (testmsg)],
			 u.u_base,1) == -1)
			 {
			   u.u_error = EFAULT;
			   return;
			 }
 			   u.u_base++;
                             u.u_count++;
			   u.u_offset++;
	  }
}