Date: Sun, 17 Jun 2007 00:33:08 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: freebsd-current@freebsd.org Subject: Re: kernel panic with pccard insert on recent 7.0 CURRENT Message-ID: <4674E3B4.5030103@u.washington.edu> In-Reply-To: <20070617071303.GG12027@obelix.dsto.defence.gov.au> References: <20070617024935.GU4602@funkthat.com> <20070616.211257.1585999818.imp@bsdimp.com> <20070617053746.GV4602@funkthat.com> <20070616.235659.-1947354616.imp@bsdimp.com> <20070617071303.GG12027@obelix.dsto.defence.gov.au>
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Wilkinson, Alex wrote:
> 0n Sat, Jun 16, 2007 at 11:56:59PM -0600, M. Warner Losh wrote:
>
> >Yes. I'm pretty sure that's wrong. All ISA and PC Card devices use
> >edge triggered interrupts. Also, it is inefficient for level
> >triggered interrupts, since two interrupt sources on the same
> >interrupt may trigger at about the same time...
>
> What is meant by "edge triggered interrupts" ?
>
> -aW
>
I'd assume 'edge triggered interrupts' mean interrupts which occur
on some sort of clock edge, most likely dealing with a clock base
required for setup, or predefined by the designers for some other reason.
-Garrett
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