Re: PCI riser cards and PCI irq routing, etc

From: Udo van den Heuvel
Date: Wed Feb 21 2007 - 13:12:33 EST


BTW:

Is the situation, with default DN setting of 19 as displayed below,
`normal` w.r.t. interrupts?
I mean: Both the DVB card with DN19 and the Unichrome Pro video adapter
have the same irq although they are on different busses.

(...)
00:13.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
Subsystem: TERRATEC Electronic GmbH Unknown device 1157
Flags: bus master, medium devsel, latency 32, IRQ 16
Memory at fdffc000 (32-bit, non-prefetchable) [size=512]

00:14.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
Subsystem: TERRATEC Electronic GmbH Unknown device 1155
Flags: bus master, medium devsel, latency 32, IRQ 20
Memory at fdffb000 (32-bit, non-prefetchable) [size=512]

01:00.0 VGA compatible controller: VIA Technologies, Inc. UniChrome Pro
IGP (rev
01) (prog-if 00 [VGA])
Subsystem: VIA Technologies, Inc. UniChrome Pro IGP
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 16
Memory at f4000000 (32-bit, prefetchable) [size=64M]
Memory at fb000000 (32-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at fc000000 [disabled] [size=64K]
Capabilities: [60] Power Management version 2
Capabilities: [70] AGP version 3.0

How can I find out what INT_A/B/C/D line is mapped to what irq?
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