[ltp] resolving IRQ conflicts on my 570E

[Ravi Pratap M]

Hey guys,

	So I have RH 7.1 running on my Thinkpad 570E, out of the box and
working very nicely indeed :-) However, I have run into this problem
where a number of drivers have a fixation for IRQ 11.

	* I have a Lucent Winmodem for which I compiled the drivers. It works
well and uses IRQ 11 on my machine. 

	* I used to have USB turned on but since the modem is more important to
me and since they both seemed to be using IRQ 11, I turned it off 

	* Now is the turn of PCMCIA :) It insists that the 2 bridges that
exist, are both on IRQ 11 and since I am going to start using an
Ethernet card soon through PCMCIA, I need to solve this problem of so
many devices wanting to share IRQ 11 !

	Here's /proc/interrupts :
           CPU0       
  0:     436383          XT-PIC  timer
  1:      20523          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  8:          1          XT-PIC  rtc
 11:     430651          XT-PIC  Texas Instruments PCI1450, Texas Instruments PCI1450 (#2), ltserial
 12:      46514          XT-PIC  PS/2 Mouse
 14:      44543          XT-PIC  ide0
NMI:          0 
ERR:          0


	So as you can see, we have a lot of sharing there :-) This is with USB
turned off.

	lspci gives me :

00:00.0 Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge (rev 03)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev 03)
00:02.0 CardBus bridge: Texas Instruments PCI1450 (rev 03)
00:02.1 CardBus bridge: Texas Instruments PCI1450 (rev 03)
00:05.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01)
00:06.0 Bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02)
00:06.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01)
00:06.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01)
00:06.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 03)
00:07.0 Communication controller: Lucent Microelectronics WinModem 56k (rev 01)
01:00.0 VGA compatible controller: Neomagic Corporation [MagicMedia 256AV] (rev 20)


	So what I want to know is how I can make my modem, PCMCIA bridges and
USB, all co-exist and not have to share IRQ 11 like this :-) The thing
is that soon I am going to start using a PCMCIA Ethernet card.

	Alternatively, tell me the current setup is okay and I will be happy
:-)

	
	Regards,

		Ravi

	

-- 
"If you're smart, you'll be humble. There always is somebody
who hasn't read a book and knows twice as much as you do."

              -- David Duchovny in Readers' Digest

	Ravi Pratap M                    <ravi@ximian.com>
                        <http://primates.ximian.com/~ravi>


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