linux-kernel - Re: Dual slot PCI riser messes up ivtv

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Date:	Sun, 24 Jun 2007 18:24:24 +0200
From:	Krzysztof Halasa <khc@...waw.pl>
To:	pharon@...il.com
Cc:	Clemens Koller <clemens.koller@...gramm.de>,
	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>,
	Robert Hancock <hancockr@...w.ca>, linux-kernel@...r.kernel.org
Subject: Re: Dual slot PCI riser messes up ivtv

Islam Amer <pharon@...il.com> writes:

> First the riser card is a dual slot one , with a chip on it so I assumed
> it is active.

Perhaps REQ/GNT arbiter. A PCI-PCI bridge is a 100+ pin chip.

> Third : The bug lies in the situation where the PVR-150 card is in the
> upper slot and the DVB card is in the lower slot, in which case the DVB
> card does not work. That was the dmesg output I posted earlier.

Interesting, the lower slot is probably wired directly to edge
connector so it should work. The upper connector should be the
problematic.
-- 
Krzysztof Halasa
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