Message-ID: <4AAC240E.20104@ufra.edu.br>
Date: Sat, 12 Sep 2009 19:43:26 -0300
From: "Leonardo H. Souza Hamada" <leonardo.hamada@ufra.edu.br>
MIME-Version: 1.0
To: linux-wireless@vger.kernel.org
Subject: Re: zd1211rw on ppc (iBook G4) -- Solved, somewhat)
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Hi all,

At this moment, after tweaking the zd1211rw code in kernel
2.6.31-gentoo, finally I am able to use the WLI-U2-KG54L wireless usb
dongle on this old ibook.

Browsing the source with a cross referencing tool
(http://lxr.free-electrons.com) and making additional checking points, I
could trace the issue as follow.

The problem is that this device returns a regulatory region of 0x49,
which is not defined in the zd1211rw tables. So the call

r <http://lxr.free-electrons.com/ident?i=r> = zd_reg2alpha2 <http://lxr.free-electrons.com/ident?i=zd_reg2alpha2>(mac <http://lxr.free-electrons.com/ident?i=mac>->regdomain, alpha2);

will fail the initialization process.


Workaround:

----snip----
int zd_mac_init_hw(struct ieee80211_hw *hw)
{
...
        r = zd_read_regdomain(chip, &default_regdomain);
        /* A unknown regulatory of 0x49 will be set default to
ZD_REGDOMAIN_FCC. */
        if (0x49 == default_regdomain)
                default_regdomain = ZD_REGDOMAIN_FCC;
...
----snip----

The above code will force the default regulatry to be FCC code for this
case. I think that this was the case in previous zd1211rw driver. What
is the country code for 0x49 region? There is a better way?


Thanks all,

Phew!! Leonardo