Re: CardBus bridge and wireless card plugged into it use same IRQ: Correct?
- To: Wolfgang Pfeiffer <email@example.com>
- Cc: debian-powerpc list <firstname.lastname@example.org>
- Subject: Re: CardBus bridge and wireless card plugged into it use same IRQ: Correct?
- From: Benjamin Herrenschmidt <email@example.com>
- Date: Thu, 04 Aug 2005 11:39:47 +0200
- Message-id: <1123148388.30257.57.camel@gaston>
- In-reply-to: <20050803164252.GA25245@localhost>
- References: <20050803164252.GA25245@localhost>
On Wed, 2005-08-03 at 18:42 +0200, Wolfgang Pfeiffer wrote:
> Hi All
> Here is the output of lspci -v:
> 0001:10:1a.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 02)
> Flags: bus master, medium devsel, latency 168, IRQ 58
> Memory at a0000000 (32-bit, non-prefetchable) [size=4K]
> Bus: primary=10, secondary=11, subordinate=14, sec-latency=176
> Memory window 0: 90000000-9ffff000 (prefetchable)
> Memory window 1: f3000000-f31ff000
> I/O window 0: 00001000-00008fff
> I/O window 1: 00009000-000090ff
> 16-bit legacy interface ports at 0001
> 0001:11:00.0 Network controller: RaLink Ralink RT2500 802.11 Cardbus Reference Card (rev 01)
> Subsystem: Unknown device 1948:3c00
> Flags: bus master, slow devsel, latency 0, IRQ 58
> Memory at f3000000 (32-bit, non-prefetchable) [size=8K]
> Capabilities: <available only to root>
> The above details the fact (or better: I hope it's a fact :) that
> "Ralink RT2500" (a wi-fi chip) is connected to the PCMCIA slot
> ("CardBus bridge") of a Titanium IV ..
> Logic might suggest the connector (the "bridge") can/must use the same
> interrupt as the wireless card that is connected to the former, but
> I'm not sure on it. So if someone with more knowledge could enlighten
> me a bit.
They are using both IRQ 58. What's wrong with that ?