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Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)

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From: Rogério <rbrito@...>
To: Ivo van Doorn <ivdoorn@...>
Cc: John W. Linville <linville@...>, <linux-kernel@...>, <rt2400-devel@...>, <rbrito@...>, Linus Torvalds <torvalds@...>
Subject: Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc (fwd)
Date: Monday, July 7, 2008 - 11:55 pm

Hi, all. (And Hi Linus!)

On Jun 29 2008, Ivo van Doorn wrote:

Just to reiterate, for both Ivo and John and people on the rt2400 list
(who may not seem my earlier problem reports that went back and forth with
Ivo), I'm willing to test any tree to get the driver working with my D-Link
DWL-G122 stick revision B (which actually works with with the rt2500usb
driver, if I boot with kernel 2.6.25, as mentioned above, but has problems
with 2.6.26-rc* kernels).

I was a bit busy with the lame project (we have just released a new
upstream release, 3.98, after two years of work!) and I have not kept up
with testing the -rc8 and -rc9 kernels that Linus released in the interim,
but I am downloading the patches so that I can see their behavior.

Actually, I did some tests with 2.6.25.4 (which is the kernel that I am
using on my x86-64, pending and update soon to 2.6.25.10 or whatever is the
point-release du jour) and I was very happy to see that I don't need the
non-free firmware from ralink.

Just as a reminder: with 2.6.25.4, I can work with it on x86-64, but not
with PowerPC. With recent 2.6.26-rc* kernels, it stopped working on x86-64
also. :(

Unfortunately, I may be moving in the near future and I would like to bring
my iBook G3 laptop with me (even if dated) so that I can continue my work
on some projects and the only way to connect and to work on then would be
with the USB stick, as I won't probably have wired conection.

Right now, I am unable to connect to the network with the USB stick, as Ivo
mentioned, due to some register differences, which I keep here (see below)
for reference (sorry for the long e-mail, but this is to keep the context
as we have already entered another month and the issue is not fixed and I
hope that Linus won't release the final 2.6.26 yet, as this kernel will
most probably be the one used by some distributions).

As Linus mentioned on
<alpine.LFD.1.10.0807051557500.3016@woody.linux-foundation.org>, he would
like a lot of people testing the changes---no, this bug submitter has not
been kidnapped :)---and this is what I am trying to do (actually, I'm
willing to do git bisect, test new trees---you name it).

Oh, just as a last piece of information, the USB wireless stick works fine
if I boot MacOS X, but Apple has dropped the support for older PowerPC
machines (and even some not so old ones :( ), this is one reason more for
me to want a working Linux release.


Thanks in advance to everybody, Rogério Brito.

P.S.: Here follows Ivo's comments on the register differences taken from
debugfs: 



-- 
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
--
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Messages in current thread:
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Rogério, (Fri Jun 20, 1:57 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Ivo van Doorn, (Fri Jun 20, 2:48 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Rogério, (Fri Jun 20, 3:58 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Rogério, (Wed Jun 25, 3:49 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Ivo van Doorn, (Mon Aug 4, 9:26 am)
Still some problems with the rt2x00 driver, Rogério Brito, (Mon Nov 24, 11:19 pm)
Re: Still some problems with the rt2x00 driver, Ivo van Doorn, (Tue Nov 25, 4:42 am)
Re: Still some problems with the rt2x00 driver, Rogério Brito, (Mon Dec 1, 9:56 pm)
Re: Still some problems with the rt2x00 driver, Rogério Brito, (Mon Dec 1, 10:00 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc, Rogério, (Thu Aug 7, 1:01 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Ivo van Doorn, (Sun Jun 29, 2:51 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Rogério, (Mon Jul 7, 11:55 pm)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Ivo van Doorn, (Tue Jul 8, 9:58 am)
Re: [2.6.26-rc4] Problems with rt2x00 USB interface on power..., Rogério, (Sat Jul 12, 8:20 pm)