IRQ 0 for cardbus bridge on TP760XD - RH 8.0

[Frederik Vanrenterghem]

I am trying to get my Level One WPC-0101 PCMCIA wireless network card to
work on a IBM Thinkpad 760XD. I've tried with Debian unstable, but have
now resorted to a standard install of Redhat 8.0, as that's the only
system that seems to be supported by Realtek. The kernel is 2.4.18-14.

Problem: the cardbus bridge doesn't get an IRQ assigned. According to
the output from the DOS utility that comes with Thinkpads, the IRQ for
the first bus should be 3, and for the second one it should be 9.
However, both seem to get assigned IRQ 0.

The output of lspci -vv -xxx -s devices is shown below. Does anyone know
what to do next? Is there a way to tell the PCMCIA modules which IRQ to
assign to the cardbus bridges, instead of trying to find it via the BIOS
or whatever way is being used standard?

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.: Unknown
device 8180 (rev 20)
	Subsystem: Realtek Semiconductor Co., Ltd.: Unknown device 8180
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin A routed to IRQ 0
	Region 0: I/O ports at 4000 [size=256]
	Region 1: Memory at 10400000 (32-bit, non-prefetchable) [size=512]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: ec 10 80 81 03 00 90 02 20 00 00 02 00 00 00 00
10: 01 40 00 00 00 00 40 10 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 02 01 00 00 ec 10 80 81
30: 00 00 00 00 50 00 00 00 00 00 00 00 00 01 20 40
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 01 00 c2 f7 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:02.0 CardBus bridge: Texas Instruments PCI1130 (rev 04)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 168, cache line size 08
	Interrupt: pin A routed to IRQ 0
	Region 0: Memory at 10812000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=01, subordinate=03, sec-latency=176
	Memory window 0: 10000000-103ff000 (prefetchable)
	Memory window 1: 10400000-107ff000
	I/O window 0: 00004000-000040ff
	I/O window 1: 00004400-000044ff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001
00: 4c 10 12 ac 07 00 00 02 04 00 07 06 08 a8 82 00
10: 00 20 81 10 00 00 00 22 00 01 03 b0 00 00 00 10
20: 00 f0 3f 10 00 00 40 10 00 f0 7f 10 00 40 00 00
30: fc 40 00 00 00 44 00 00 fc 44 00 00 ff 01 80 05
40: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 33 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 20 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 82 72 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

00:02.1 CardBus bridge: Texas Instruments PCI1130 (rev 04)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 168, cache line size 08
	Interrupt: pin B routed to IRQ 0
	Region 0: Memory at 10811000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=00, secondary=04, subordinate=06, sec-latency=176
	Memory window 0: 10c00000-10fff000 (prefetchable)
	Memory window 1: 11000000-113ff000
	I/O window 0: 00004800-000048ff
	I/O window 1: 00004c00-00004cff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001
00: 4c 10 12 ac 07 00 00 02 04 00 07 06 08 a8 82 00
10: 00 10 81 10 00 00 00 02 00 04 06 b0 00 00 c0 10
20: 00 f0 ff 10 00 00 00 11 00 f0 3f 11 00 48 00 00
30: fc 48 00 00 00 4c 00 00 fc 4c 00 00 ff 02 c0 05
40: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 20 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 83 72 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

-- 
Frederik Vanrenterghem <[e-mail]>