From owner-freebsd-questions Thu May 14 19:02:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA07301 for freebsd-questions-outgoing; Thu, 14 May 1998 19:02:57 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from whqvax.picker.com (whqvax.picker.com [144.54.1.1]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id TAA07269 for ; Thu, 14 May 1998 19:02:40 -0700 (PDT) (envelope-from rhh@ct.picker.com) Received: from ct.picker.com by whqvax.picker.com with SMTP; Thu, 14 May 1998 22:02:11 -0400 (EDT) Received: from elmer.ct.picker.com by ct.picker.com (4.1/SMI-4.1) id AA00476; Thu, 14 May 98 22:02:13 EDT Received: by elmer.ct.picker.com (SMI-8.6/SMI-SVR4) id WAA21093; Thu, 14 May 1998 22:01:55 -0400 Message-Id: <19980514220155.B20919@ct.picker.com> Date: Thu, 14 May 1998 22:01:55 -0400 From: Randall Hopper To: Julian Elischer Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Rescanning SCSI-Bus without Rebooting? Mail-Followup-To: Julian Elischer , freebsd-questions@FreeBSD.ORG References: <19980514202755.A20813@ct.picker.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.91.1i In-Reply-To: ; from Julian Elischer on Thu, May 14, 1998 at 06:19:28PM -0700 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Julian Elischer: |if your scanner is uk0 then it has already been found and no |amount of reprobing will write a driver for it. I'm pretty green with SCSI internals so please bear with me :-) uk0 (the Microtek E6 SCSI Scanner) is found when I boot with the scanner on. It is "not" found I boot with the scanner off. That's the whole reason I need that unit rescan to work. I want to avoid leaving the scanner on all the time (shortens lamp life), and I'd rather not reboot (to configure uk0) everytime I have a need to use it. I hope that makes sense. |uk stands for "unknown" |there is no scanner driver | |did it come up as uk0 in the dmesg? Yes, but only when the scanner is on. |if so you ar ewher eyou wnt to be.. |if not then do as the example you quote says |AND USE sd0! Can I use sd0 (SCSI Disk?) for a SCSI device that reports itself as a "Scanner"? |you cannot use uk0 until IT HAS BEEN FOUND |so you need to ask the scsi system via some OTHER scsi device that |actually exists. Ok. So there's something fundamentally different about the uk driver. I assumed (wrongly) that it was a "generic" SCSI driver with a minimal implementation that could be treated like any other SCSI device for generic SCSI operations. So, what device is recommended for use in this case where you want to wire a known scanner device down? Thanks, Randall To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message