Re: Build the bcm43xx with own kernel

[Emmanuel Galatoulas <galas@tee.gr>]

Joerg Sommer wrote:

> Hi,
>
> I tried to build the bcm43xx driver from the debian package with a
> self-made kernel, but I failed.
>
> Firstly I needed the header files for ieee80211softmac. After building
> and installing the package I found the include files in
> /usr/src/linux-headers-2.6.15.1. The bcm43xx make file searches for them
> in my kernel tree /usr/src/linux-2.6.15.1/. How can I "merge" them except
> copy the header files into the kernel directory?
>
> But I did it (copy the header files into the kernel directory) and then
> got this message:
> #v+
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_main.o
> /usr/src/modules/bcm43xx/bcm43xx_main.c:667: warning: 'bcm43xx_disassociate' defined but not used
> /usr/src/modules/bcm43xx/bcm43xx_main.c:696: warning: 'bcm43xx_associate' defined but not used
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_dma.o
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_debugfs.o
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_radio.o
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_phy.o
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_power.o
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_wx.o
> /usr/src/modules/bcm43xx/bcm43xx_wx.c: In function 'bcm43xx_wx_set_channelfreq':
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:118: warning: unused variable 'softmac'
> /usr/src/modules/bcm43xx/bcm43xx_wx.c: At top level:
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:227: warning: 'bcm43xx_wx_set_sensitivity' defined but not used
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:237: warning: 'bcm43xx_wx_get_sensitivity' defined but not used
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:525: warning: 'bcm43xx_wx_set_retry' defined but not used
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:535: warning: 'bcm43xx_wx_get_retry' defined but not used
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:575: warning: 'bcm43xx_wx_set_power' defined but not used
> /usr/src/modules/bcm43xx/bcm43xx_wx.c:585: warning: 'bcm43xx_wx_get_power' defined but not used
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_pio.o
>  CC [M]  /usr/src/modules/bcm43xx/bcm43xx_ilt.o
>  LD [M]  /usr/src/modules/bcm43xx/bcm43xx.o
>  Building modules, stage 2.
>  MODPOST
> *** Warning: "free_ieee80211softmac" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_stop" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_set_genie" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_set_wap" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_get_essid" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_get_rate" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_get_wap" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_set_essid" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_start" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_get_genie" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_get_scan_results" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_trigger_scan" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "alloc_ieee80211softmac" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
> *** Warning: "ieee80211softmac_wx_set_rate" [/usr/src/modules/bcm43xx/bcm43xx.ko] undefined!
>  CC      /usr/src/modules/bcm43xx/bcm43xx.mod.o
>  LD [M]  /usr/src/modules/bcm43xx/bcm43xx.ko
> #v-
>
> The package build fine, but when I try to load the driver I get many
> error messages from the kernel
>
> ieee80211_crypt: unregistered algorithm 'NULL'
> ieee80211_crypt: registered algorithm 'NULL'
> ieee80211: 802.11 data/management/control stack, git-1.1.7
> ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
> ieee80211softmac: Unknown symbol wireless_send_event
> bcm43xx: Unknown symbol ieee80211softmac_wx_set_rate
> bcm43xx: Unknown symbol alloc_ieee80211softmac
> bcm43xx: Unknown symbol ieee80211softmac_wx_trigger_scan
> bcm43xx: Unknown symbol ieee80211softmac_wx_get_scan_results
> bcm43xx: Unknown symbol ieee80211softmac_wx_get_genie
> bcm43xx: Unknown symbol ieee80211softmac_start
> bcm43xx: Unknown symbol ieee80211softmac_wx__essid
> bcm43xx: Unknown symbol ieee80211softmac_wx_get_wap
> bcm43xx: Unknown symbol ieee80211softmac_wx_get_rate
> bcm43xx: Unknown symbol ieee80211softmac_wx_get_essid
> bcm43xx: Unknown symbol ieee80211softmac_wx_set_wap
> bcm43xx: Unknown symbol ieee80211softmac_wx_set_genie
> bcm43xx: Unknown symbol ieee80211softmac_stop
> bcm43xx: Unknown symbol free_ieee80211softmac
>
> Can someone give me a hint, what went wrong?
>
> Have a nice weekend, Jörg.
>  

Well this reminds me of the kind of experiments I did myself
trying to build the module "on top" of the kernel's own source!
So if I recall correctly (there is a more extensive report in a previous
post in the list) the errors you get are due to differences between the
header files from the softmac own source and the respective files in the
kernel source. Besides there are specific files (those related to the 
wx_* errors!)
which are completely missing from the kernel source and in my opinion make
the compilation of bcm43xx with the softmac source inevitable at the moment!

best regards

emmanuel