Re: brcmsmac driver only works when sitting next to the AP

[Camaleón <noelamac gmail com>]

2011/8/23 Roland Vossen <rvossen broadcom com>:
>>> that is great. Ok, do you have the kernel sources on your system ? If so,
>>> cd
>>> to the root of the source tree and issue these commands to build the
>>> driver:
>>>
>>> make SUBDIRS=drivers/staging/brcm80211 clean
>>> make SUBDIRS=drivers/staging/brcm80211 modules
>>
>> Done!
>
> perfect !
>
>>> if that works, do a 'modprobe mac80211' followed by a 'insmod
>>> drivers/staging/brcm80211/brcmutil/brcmutil.ko'
>>
>> root@stt300:/usr/src/linux-source-3.0.0# insmod
>> drivers/staging/brcm80211/brcmutil/brcmutil.ko
>> insmod: can't read 'drivers/staging/brcm80211/brcmutil/brcmutil.ko':
>> No such file or directory
>>
>> Ah, okay...
>> root@stt300:/usr/src/linux-source-3.0.0# insmod
>> drivers/staging/brcm80211/util/brcmutil.ko
>
> Ah, the source tree had some renaming. It is named 'brcmutil' in my source
> but in the source you are using it is still named 'util'.

Yep... I'm using Debian kernel sources for their "testing" branch.

>> root@stt300:/usr/src/linux-source-3.0.0#
>>
>>> followed by a 'insmod drivers/staging/brcm80211/brcmsmac/brcmsmac.ko'.
>>
>> Mmm... this one returned an error:
>>
>> root@stt300:/usr/src/linux-source-3.0.0# insmod
>> drivers/staging/brcm80211/brcmsmac/brcmsmac.ko
>> insmod: error inserting
>> 'drivers/staging/brcm80211/brcmsmac/brcmsmac.ko': -1 Unknown symbol in
>> module
>>
>> And dmesg shows:
>>
>> [16235.934894] brcmsmac: Unknown symbol bcm_chspec_malformed (err 0)
>> [16235.934985] brcmsmac: Unknown symbol bcm_pktq_init (err 0)
>> [16235.935035] brcmsmac: Unknown symbol bcm_bitcount (err 0)
>> [16235.935092] brcmsmac: Unknown symbol bcm_pktq_peek_tail (err 0)
>> [16235.935130] brcmsmac: Unknown symbol bcm_pktq_mdeq (err 0)
>> [16235.935283] brcmsmac: Unknown symbol bcm_pktq_pdeq (err 0)
>> [16235.935329] brcmsmac: Unknown symbol bcm_chspec_ctlchan (err 0)
>> [16235.935375] brcmsmac: Unknown symbol bcm_pkt_buf_free_skb (err 0)
>> [16235.935414] brcmsmac: Unknown symbol bcm_iovar_lencheck (err 0)
>> [16235.935457] brcmsmac: Unknown symbol bcm_pkttotlen (err 0)
>> [16235.935519] brcmsmac: Unknown symbol bcm_ether_atoe (err 0)
>> [16235.935581] brcmsmac: Unknown symbol bcm_crc8 (err 0)
>> [16235.935636] brcmsmac: Unknown symbol bcm_pkt_buf_get_skb (err 0)
>> [16235.935677] brcmsmac: Unknown symbol bcm_pktq_penq_head (err 0)
>> [16235.935735] brcmsmac: Unknown symbol bcm_pktq_pdeq_tail (err 0)
>> [16235.935774] brcmsmac: Unknown symbol bcm_pktq_pflush (err 0)
>> [16235.935827] brcmsmac: Unknown symbol bcm_pktq_penq (err 0)
>> [16235.935882] brcmsmac: Unknown symbol bcm_pktq_flush (err 0)
>
> These symbols are contained in the 'brcmutil.ko' module. Can you check with
> lsmod that brcmutil is indeed loaded ?

Let me check it...

root@stt300:/usr/src/linux-source-3.0.0# lsmod|grep -e mac -e br
brcmutil               13187  0
mac80211              165768  0
cfg80211              112970  1 mac80211

Seems loaded :-?

root@stt300:/usr/src/linux-source-3.0.0# insmod
drivers/staging/brcm80211/brcmsmac/brcmsmac.ko
insmod: error inserting
'drivers/staging/brcm80211/brcmsmac/brcmsmac.ko': -1 Unknown symbol in
module

And dmesg:

[18412.454900] brcmutil: module is from the staging directory, the
quality is unknown, you have been warned.
[18462.257358] brcmsmac: module is from the staging directory, the
quality is unknown, you have been warned.
[18462.260105] brcmsmac: Unknown symbol crc_ccitt (err 0)

Greetings,

-- 
Camaleón