Date: Thu, 14 May 1998 22:01:55 -0400 From: Randall Hopper <rhh@ct.picker.com> To: Julian Elischer <julian@whistle.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Rescanning SCSI-Bus without Rebooting? Message-ID: <19980514220155.B20919@ct.picker.com> In-Reply-To: <Pine.BSF.3.95.980514181551.11967F-100000@current1.whistle.com>; from Julian Elischer on Thu, May 14, 1998 at 06:19:28PM -0700 References: <19980514202755.A20813@ct.picker.com> <Pine.BSF.3.95.980514181551.11967F-100000@current1.whistle.com>
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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
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