From owner-freebsd-questions Wed Dec 2 16:11:35 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA26439 for freebsd-questions-outgoing; Wed, 2 Dec 1998 16:11:35 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from nina.pagesz.net (nina.pagesz.net [208.194.157.3]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA26432; Wed, 2 Dec 1998 16:11:33 -0800 (PST) (envelope-from rhh@pagesz.net) Received: from stealth.dummynet. (juana-9.pagesz.net [208.213.126.9]) by nina.pagesz.net (8.8.7/8.8.7) with ESMTP id TAA16740; Wed, 2 Dec 1998 19:11:06 -0500 Received: (from rhh@localhost) by stealth.dummynet. (8.9.1/8.8.8) id TAA02228; Wed, 2 Dec 1998 19:11:35 -0500 (EST) (envelope-from rhh) Message-ID: <19981202191134.B868@pagesz.net> Date: Wed, 2 Dec 1998 19:11:34 -0500 From: Randall Hopper To: Baety Wayne Amn 18CS/SCBD , "'FreeBSD Current'" , "'FreeBSD Questions'" Subject: Re: CAM Mail-Followup-To: Baety Wayne Amn 18CS/SCBD , 'FreeBSD Current' , 'FreeBSD Questions' References: <06A98ECF2D0FD211AA240060B0681211F6CBAF@ms-18sptg1.kadena.af.mil> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: <06A98ECF2D0FD211AA240060B0681211F6CBAF@ms-18sptg1.kadena.af.mil>; from Baety Wayne Amn 18CS/SCBD on Mon, Nov 30, 1998 at 08:04:59PM +0900 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Baety Wayne Amn 18CS/SCBD: |Where's documentation on properly configuring a kernel for use with this new |CAM SCSI subsystem. I have a Mylex DAC960PL (uses Symbios 53C720SE |controller) and am wondering how to enable it in the kernel. I asked for that a week or so ago, and didn't get any response. So I don't know if there are any such docs. For example, CAM is in 3.0-RELEASE, and there's really nothing on it in the handbook or FAQ. There is cam(3), pass(4), and xpt(4), but that isn't really a how-to. My limited understanding is that if you're running a CAM-enabled kernel, CAM is just "there". My original pre-CAM SCSI-related kernel lines flew with a CAM kernel with no change except "sd" disks are now "da" disks: controller ncr0 controller scbus0 at ncr0 # Single bus device disk cd0 at scbus0 target 0 unit 0 # SCSI CD-ROM device sa0 at scbus0 target 4 unit 0 # SCSI tapes disk da0 at scbus0 target 5 unit 0 # da0 = ZIP Drive There's this new concept of a pass-through device (/dev/pass*) which I'm not too sure about; these are doled out to detected SCSI devices. And there's a TLI device (/dev/xpt*) which I think is allocated 1 per bus. In addition to the above lines, I also added a wired-down pass0 so I could configure SANE to find my scanner consistently. I also wired down my CDRW, though I don't know if that's necessary or not: device pass0 at scbus0 target 6 unit 0 # CAM passthrough = Scanner device pass1 at scbus0 target 0 unit 0 # RICOH MP6200S CDRW SCSI bus rescans and lists are much simpler with CAM (from a user's perpective at least): camcontrol rescan 0 camcontrol devlist That's about all I know at this point. Randall To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message