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Date:      Thu, 16 Nov 2000 12:54:48 -0800 (PST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Bernd Walter <ticso@cicely8.cicely.de>
Cc:        Andrew Gallatin <gallatin@cs.duke.edu>, Christian Weisgerber <naddy@mips.inka.de>, freebsd-alpha@FreeBSD.org
Subject:   Re: PC164 IDE only works (was: SMPng stability)
Message-ID:  <XFMail.001116125448.jhb@FreeBSD.org>
In-Reply-To: <20001116212040.A12094@cicely8.cicely.de>

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On 16-Nov-00 Bernd Walter wrote:
> On Thu, Nov 16, 2000 at 11:50:25AM -0800, John Baldwin wrote:
>> All the PCI devices on most alphas (rawhide's excluded AFAIK) are
>> level-triggered.
> 
> The standard IDE channels use ISA irq channels instead of PCI.
> And they behave exactly like edge triggered lines.
> Finally the kernel has registered them as edged.

I meant to say PCI interrupts, which almost all PCI devices except for ATA
controllers and USB controllers use. :-P  PCI NIC's would be a good example.

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/


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