From owner-freebsd-hackers Thu Apr 22 19:38:20 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from lor.watermarkgroup.com (lor.watermarkgroup.com [207.202.73.33]) by hub.freebsd.org (Postfix) with ESMTP id 8E9301548C for ; Thu, 22 Apr 1999 19:38:16 -0700 (PDT) (envelope-from luoqi@watermarkgroup.com) Received: (from luoqi@localhost) by lor.watermarkgroup.com (8.8.8/8.8.8) id WAA09957; Thu, 22 Apr 1999 22:35:46 -0400 (EDT) (envelope-from luoqi) Date: Thu, 22 Apr 1999 22:35:46 -0400 (EDT) From: Luoqi Chen Message-Id: <199904230235.WAA09957@lor.watermarkgroup.com> To: freebsd-hackers@FreeBSD.ORG, zzhang@cs.binghamton.edu Subject: Re: Source code dealing with raw I/O Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > I am interested to know where in source code the raw I/O is handled. I > guess that when you write something like open("/dev/r",flag) instead > of open("/dev/",flag), raw I/O happens. Can anyone tell me which > soure code files or routines handle RAW I/O? How to get the dev argument > to a device read() routine like wdopen() in wd.c? > > Any help is appreciated. > > -------------------------------------------------- > Zhihui Zhang. Please visit http://www.freebsd.org > -------------------------------------------------- > kern/kern_physio.c -lq To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message