To: George <george.news@gmx.net>
Cc: Grazvydas Ignotas <notasas@gmail.com>,
	Luciano Coelho <luciano.coelho@nokia.com>,
	"Luis R. Rodriguez" <mcgrof@gmail.com>,
	Bob Copeland <me@bobcopeland.com>,
	Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>,
	"linux-wireless\@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: Compat-wireless N900
References: <4CB6BE57.8010401@gmx.net>
	<1287071844.11341.5.camel@gnutoo-laptop>
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	<4CB74759.3030807@gmx.net>
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	<4CBC9A51.8030309@gmx.net> <1287427291.8043.2.camel@powerslave>
	<1287428554.8043.6.camel@powerslave> <4CBD52DE.9090804@gmx.net>
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From: Kalle Valo <kvalo@adurom.com>
Date: Mon, 25 Oct 2010 05:03:19 +0300
In-Reply-To: <4CBE9C4F.7050806@gmx.net> (George's message of "Wed\, 20 Oct 2010 09\:37\:51 +0200")
Message-ID: <87ocaj1120.fsf@purkki.adurom.net>
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Sender: linux-wireless-owner@vger.kernel.org

George <george.news@gmx.net> writes:

> It seems that it tries to do something but it is not finally done.
> However, as you can see it seems there is no error (at least
> reported). Could it be that spi_read buf is almost everytime reading
> 00 00 00 00?

If you get nothing but zeros back from the device, most likely that
means that it's not powered up properly. 

wl1251 chip on n900 is powered up by using a gpio line. I'm worried
that the struct wl12xx_platform_data wl1251 wireless-compat driver
expects (defined in /include/linux/wl12xx.h) doesn't match what the
old maemo kernel provides. Unfortunately I can't remember anymore what
the platform data was like in maemo kernels and there's no easy way
for me to check that right now.

-- 
Kalle Valo