Questions on libertas driver

[Ihar Hrachyshka]

> Hi all,
> 
> I finally solved all my problems and now libertas driver works on my 
> BF537 processor (blackfin arch).
> I followed this procedure :
> 
> I downloaded the last libertas tree version, on 
> http://git.kernel.org/?p=linux/kernel/git/linville/wireless-2.6.git;a=tree;f=drivers/net/wireless/libertas;h=5acf0f79b8fec9e41e17973e23c4ce11c40dfd59;hb=everything
> I dowloaded every file one by one using the "raw" link.
> 
> I replaced all compare_ether_addr() functions call by a memcmp() of 6
> bytes.
> 
> In fact the function compare_ether_addr()  gets 2 u8 pointers in 
> parameters, but converts it in u16 pointers to do 3 u16 comparaison 
> instead of 6 u8 comparaison....
> When the first byte of the parameters is not 16 bits aligned (not on 
> even address), the blackfin hang up and generate a kernel panic 
> (misaligned data access).
> 
> With the last driver version, the "tx timeout" problem I got with a 
> previous driver version doesn't appear anymore...
> 
> I made a script to dowload a 10Mo file on internet every 10s, and it 
> worked without error during 2 days. So now I think the driver is
> stable for my use.
> 
> Regards,
> Cyril

Look here:
http://lists.infradead.org/pipermail/libertas-dev/2008-January/thread.html
for patches in "libertas: fix memory alignment problems on the
blackfin" thread. These patches at least should fix your problems with
compare_ether_addr(). Mine blackfin board works with libertas Wifi OK
with them.

-- 
Ihar Hrachyshka
Software Developer
Promwad Innovation Company
19, Sharangovicha Str.
220018, Minsk, Belarus
Phone/Fax: +375 (17) 211-5826
Web: www.promwad.com