Date: Fri, 3 Sep 2004 00:01:25 +0200 From: Wilko Bulte <wb@freebie.xs4all.nl> To: Peter Wemm <peter@wemm.org> Cc: cvs-src@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/fdc fdc_isa.c Message-ID: <20040902220125.GA72910@freebie.xs4all.nl> In-Reply-To: <200409021344.41267.peter@wemm.org> References: <200408312037.i7VKbARQ075764@repoman.freebsd.org> <20040831203807.GA60718@freebie.xs4all.nl> <1094046475.31688.0.camel@builder02.qubesoft.com> <200409021344.41267.peter@wemm.org>
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On Thu, Sep 02, 2004 at 01:44:41PM -0700, Peter Wemm wrote.. > On Wednesday 01 September 2004 06:47 am, Doug Rabson wrote: > > On Tue, 2004-08-31 at 21:38, Wilko Bulte wrote: > > > On Tue, Aug 31, 2004 at 08:37:10PM +0000, Warner Losh wrote.. > > > > > > > imp 2004-08-31 20:37:10 UTC > > > > > > > > FreeBSD src repository > > > > > > > > Modified files: > > > > sys/dev/fdc fdc_isa.c > > > > Log: > > > > When ISA_PNP_PROBE is called, it will return 0 when it finds a > > > > device, ENOENT when there's no PNP ID for this device node, or > > > > ENXIO when there is one, but it doesn't match. > > > > > > > > In the nonPNP case (as most Alpha systems appear to be), we > > > > were > > > > > > I think no Alpha has PNP. > > > > All alphas with ISA busses support ISA PnP. I used to use it with an > > old ISA PnP sound card in my 164lx. > > Exactly. Firmware support isn't required. ISA-PnP is a hardware level > protocol. You can plug an isa-pnp card into any machine with physical > isa slots and have to use the isapnp interface to wake the card, probe > it, assign irqs etc. On PC's, this is typically done by the bios for OK, maybe I should have said that (AFAIK..) there is nothing in SRM that would do that on Alphas. DEC did not have too many ISA cards for Alphas as far as I remember. EISA cards were used (Adaptec 174x, 274x, Compaq Qvision VGA, DEFAA (?) fddi, DE42x ethernet is what comes to mind. -- Wilko Bulte wilko@FreeBSD.org
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