NetGear MA401RA can't find an open IRQ
sprocket at PATH.Berkeley.EDU
Sun Feb 2 16:04:39 EST 2003
I am using a NetGear MA401RA 802.11b card, which has a manufacturer and
model id identical to the "Phillips 802.11b WLAN PCMCIA" card in the
I compiled and installed the hostap package, version 2002-10-12.
Other relevant packages:
These come from an (updated) Mandrake 9.0 distribution.
Here is what I get in /var/log/messages when I restart pcmcia services
and insert the card:
Feb 2 12:48:12 nikita cardmgr: socket 0: Philips 802.11b WLAN PCMCIA
Feb 2 12:48:12 nikita kernel: cs: memory probe 0x0c0000-0x0fffff:
excluding 0xc0000-0xcffff 0xe0000-0xfffff
Feb 2 12:48:12 nikita cardmgr: executing: 'modprobe hostap_cs'
Feb 2 12:48:12 nikita kernel: hostap_cs: hostap_cs.c 0.0.0 2002-10-12
(SSH Communications Security Corp, Jouni Malinen)
Feb 2 12:48:12 nikita kernel: hostap_cs: (c) Jouni Malinen
<jkmaline at cc.hut.fi>
Feb 2 12:48:12 nikita kernel: hostap_cs: RequestIRQ: Resource in use
Feb 2 12:48:13 nikita cardmgr: get dev info on socket 0 failed:
Resource temporarily unavailable
Why can't this driver find an open IRQ? Aren't the PCMCIA cards just
supposed to use the IRQ of the controller (IRQ 11, in my case).
I have excluded IRQs 3,4,7, and 12 from PCMCIA consideration via
Here is what I have in my /proc/interrupts:
0: 604215 XT-PIC timer
1: 9308 XT-PIC keyboard
2: 0 XT-PIC cascade
5: 1709 XT-PIC usb-uhci, ESS Maestro 2E
8: 2 XT-PIC rtc
11: 4013 XT-PIC Texas Instruments PCI1225, Texas
Instruments PCI1225 (#2), eth0
12: 69372 XT-PIC PS/2 Mouse
14: 49248 XT-PIC ide0
15: 34890 XT-PIC ide1
In addition, my /proc/pci reveals that IRQ 9 is being used by some kind
Bus 0, device 7, function 3:
Bridge: Intel Corp. 82371AB/EB/MB PIIX4 ACPI (rev 3).
This leaves IRQs 6,10, and 13 unaccounted for, plus the 11 which I
thought all PCMCIA cards were supposed to use.
I get similar results trying this card with the orinoco_cs driver. I
also tried plugging in my friend's LinkSys WPC11 rev. 3 card, and it was
also recognized and bound to the hostap_cs module, but with the same
My LinkSys wired (tulip-based) ethernet card works fine on this PCMCIA
slot, and it uses IRQ 11 when it is installed. However, this card also
mysteriously appears on the PCI bus, and it uses the plain PCI tulip
driver (not tulip_cs).
And yes, I tried loading the NetGear card separately from the LinkSys
card, to avoid any potential conflict between the two.
Daniel Lyddy sprocket at path.berkeley.edu
California Center for the Commercialization of ITS Technologies
2105 Bancroft Way, Berkeley, CA 94720-1516
tel: +1 (510) 642-5667 fax: +1 (510) 642-0910
Shannon's Law: All learning derives from suprises.
More information about the HostAP