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

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Message-ID: <20080620195815.GA2703@ime.usp.br>
Date:	Fri, 20 Jun 2008 16:58:15 -0300
From:	Rogério Brito <rbrito@....usp.br>
To:	Ivo van Doorn <ivdoorn@...il.com>
Cc:	"John W. Linville" <linville@...driver.com>,
	linux-kernel@...r.kernel.org, rbrito@....usp.br
Subject: Re: [2.6.26-rc4] Problems with rt2x00 USB interface on powerpc
	(fwd)

Hi, Ivo. Thank you for your reply.

On Jun 20 2008, Ivo van Doorn wrote:
> Hi,
> 
> > Did you receive my earlier message (attached here for reference)? I'm
> > willing to experiment with the driver a little bit and I hope that the
> > information that I have provided so far is helpful to chase the reason
> > why the driver doesn't work on PowerPC.
> 
> Sorry I have been quite busy with other things.

I'm terribly sorry for that, since I would like the driver to work with
the USB stick still in the 2.6.26 release (since that's what some
distributions will probably use).

> I have glanced over the register dumps, and there are no obvious
> endian problems.

OK.

> The reason most registers are different with the 16bits swapped is the way
> rt2x00 sends the register information through debugfs. rt2500usb only has 16bit
> registers and the way the information is dumped through debugfs assumes 32bit
> registers.

I didn't know that and was surprised. I thought that it would have been
something easier to fix, then.

> I will go over the real register differences as soon as possible, but
> as I said, I am momentarily quite busy with other things. :(

Thanks anyway. I am willing to help as much as I can.


Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@...ckenzie,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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