Date: Tue, 13 Jun 1995 06:11:11 +0200 (MET DST) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Subject: Re: `device' versus `disk' in kernel config file Message-ID: <199506130411.GAA06418@uriah.heep.sax.de> In-Reply-To: <199506122040.GAA27564@godzilla.zeta.org.au> from "Bruce Evans" at Jun 13, 95 06:40:18 am
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As Bruce Evans wrote: > > >What exactly is the difference between saying: > > > device sd0 > > device st0 > > >and > > > disk sd0 > > tape st0 > > >in a kernel config file? > > The latter wouldn't work. In general, `disk's are attached to controllers > and `devices's are stand-alone. `device sd0' would give little more than > a file "sd.h" with `#define NSD 1" in it, except config/mkioconf.c knows > that the devices cd, ch, sd, st and uk are scsi devices (:-() and generates > extra code for them. Perhaps the rules should be generalized, and we should people require to configure their scsi devices like: disk sd0 on scbus? tape st0 on scbus? when referring to the `generic' devices? This would config allow to forget about the extra knowledge to know all SCSI device by name. disk sd? on scbus? might be even better, but i guess it's beyond the current syntax. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ Never trust an operating system you don't have sources for. ;-)
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