Intel PCI-E 4965AGN wireless iwn(4) isn't detected on Compaq 6715s laptop - USB bus?

[Roland Smith]

On Tue, Jul 27, 2010 at 10:23:49AM +0100, Anton Shterenlikht wrote:
> Hi
> 
> I've HP Compaq 6715s laptop. I'm trying
> to get wireless working. The laptop has
> Intel 4965 4965AGN wireless WiFi PCI-E card 802.11N AGN
> which is supported by iwn(4). I compiled iwn support
> into the kernel as suggested by the man page.

Did you also compile in the correct firmware module?

> However, the card doesn't appear in dmesg or
> in pciconf -lv.

Hmm. My 5100 AGN is correctly detected and used;

iwn0 at pci0:14:0:0:	class=0x028000 card=0x12018086 chip=0x42328086 rev=0x00 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Carte Intel WiFi Link 5100 AGN (Intel WiFi Link 5100)'
    class      = network

iwn0: <Intel(R) PRO/Wireless 5100> mem 0xf2200000-0xf2201fff irq 18 at device 0.0 on pci14
iwn0: MIMO 1T2R, MoW, address 00:22:fa:a3:b6:50
iwn0: [ITHREAD]
iwn0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwn0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwn0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36M

> The laptop has a wireless toggle button, which is supposed
> to enable/disable wireless. There is also an LED, which
> lights on when wireless is enabled, and goes off
> when wireless is off. Well, at least this is what
> should happen.
> 
> On boot the LED is on.
> 
> If I press the button to disable wireless, the LED goes
> off and in dmesg I see:
> 
> ugen0.2: <Broadcom Corp> at usbus0 (disconnected)
> 
> When I switch wireless back on again I see in dmesg:
> 
> ugen0.2: <Broadcom Corp> at usbus0
> Does this mean that wireless sits on USB bus?

I don't think so. I think this is some kind of management interface? I get the
same messages when I switch off my 5100 AGN.
 
> Does this give me a clue about how to debug
> the problem further?

It puzzles me that it is not seen in the pciconf output. Could it be that the
wireless is disabled in the laptop's BIOS?

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
[plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
pgp: 1A2B 477F 9970 BA3C 2914  B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 196 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20100801/c9932885/attachment.pgp