Date: Wed, 22 Oct 2003 18:55:14 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: rk47 <rk@nanoteq.co.za> Cc: freebsd-questions@freebsd.org Subject: Re: What is a "unit" number of a device Message-ID: <20031022092514.GP33152@wantadilla.lemis.com> In-Reply-To: <bn34bp$c8f$1@sea.gmane.org> References: <bn34bp$c8f$1@sea.gmane.org>
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--0fZkDq/H4AmqaB8D Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tuesday, 21 October 2003 at 13:25:20 +0200, rk47 wrote: > What is a "unit" number of a device That depends a lot on the device. For SCSI disks, you select the unit number on the drive itself. > and how does it relate to the minor number of the device. Typically the last few bits of the minor number map directly to the unit number. > Is there a generic relationship or dowes it differ between devives. "Yes". Look at the section man page for the device in question. It *should* give that mapping. If it doesn't, the header files are (maybe) your friend. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers. --0fZkDq/H4AmqaB8D Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (FreeBSD) iD8DBQE/lkz6IubykFB6QiMRAqFXAKCYckZAn3HTDE+cXljQcrqaTJFXeQCeJsQ+ 5xBAm6KU7Rv1zIlc3PaOGt4= =QFAC -----END PGP SIGNATURE----- --0fZkDq/H4AmqaB8D--
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