Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 24 Feb 2006 15:39:57 +1100
From:      Norberto Meijome <freebsd@meijome.net>
To:        Nathan Lay <nslay@comcast.net>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: if_iwi on FreeBSD 6.0 on a Thinkpad T43
Message-ID:  <43FE8E1D.2010506@meijome.net>
In-Reply-To: <43FE042F.1050300@comcast.net>
References:  <43FE042F.1050300@comcast.net>

next in thread | previous in thread | raw e-mail | index | archive | help
Nathan Lay wrote:
> Hi all,
> I've encountered a peculiar quirk in either this laptop or FreeBSD
> with IPW2915ABG.  For some reason or another, either the Thinkpad
> turns the card on at bootup, or FreeBSD's if_iwi driver and acpi_ibm
> mistakenly think the card is turned on.
>
> My loaded modules:
> Id Refs Address    Size     Name
> 1   14 0xc0400000 4033b4   kernel
> 2    1 0xc0804000 5e28     snd_ich.ko
> 3    2 0xc080a000 20448    sound.ko
> 4    1 0xc082b000 3f44     acpi_ibm.ko
> 5   17 0xc082f000 6057c    acpi.ko
> 6    1 0xc0890000 41c4     wlan_tkip.ko
> 7    1 0xc0895000 6fe4     wlan_ccmp.ko
> 8    1 0xc1d7c000 18000    linux.ko
>
> Notice that if_iwi is NOT loaded.
>
> Let's have a look at dev.acpi_ibm.0.wlan
> dev.acpi_ibm.0.wlan: 1
>
> Well thats odd, why would acpi think the wireless chip is turned on
> with no driver loaded?
>
> Let's load if_iwi for kicks
>
> iwi0: <Intel(R) PRO/Wireless 2915ABG> mem 0xa8401000-0xa8401fff irq 11
> at device 2.0 on pci4
> iwi0: Ethernet address: 00:13:ce:b7:ea:8
>
> That works just fine it seems.
> But then:
>
> %iwicontrol iwi0 -r
> Radio is ON
>
>
> So, now that the driver is loaded, both if_iwi and acpi_ibm think the
> card is turned on, but there is no firmware loaded.
> Loading a firmware and then using either `ifconfig iwi0 up' or 
> `dhclient iwi0' does absolutely nothing.
>
> I've tried various things with the kernel and BIOS but with no luck.
>
> here is my uname:
> FreeBSD LIGHTBULB.LOCAL 6.0-RELEASE-p4 FreeBSD 6.0-RELEASE-p4 #19: Mon
> Feb 20 15:06:16 EST 2006    
> root@LIGHTBULB.LOCAL:/usr/obj/usr/src/sys/LIGHTBULB  i386
>
> Keep in mind, this also happens on GENERIC.
>
> So, is this a bug in FreeBSD or a quirk in the laptop?  I've pondered
> whether to submit a PR but I'm not sure what exactly is going on
> here.  Even disabling the card in the BIOS, acpi_ibm will still
> indicate that wlan is turned on.
> If anyone can clue me in here, please please do so.  Until then I'm
> surfing with an atheros card :)
Hi there,
iwi0 works fine here on a Toshiba Tecra laptop, both with if_iwi.ko or
built into the kernel. Since 6.0 Release, now on 6.1 Pre#2.

Beto



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?43FE8E1D.2010506>