linux-kernel - Re: Zaurus CF tests -- ok

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Date:	Sat, 16 Apr 2011 06:04:42 +0200
From:	Marek Vasut <marek.vasut@...il.com>
To:	Cyril Hrubis <metan@....cz>
Cc:	Pavel Machek <pavel@....cz>, rpurdie@...ys.net, lenz@...wisc.edu,
	kernel list <linux-kernel@...r.kernel.org>, arminlitzel@....de,
	thommycheck@...il.com,
	"linux-arm-kernel" <linux-arm-kernel@...ts.infradead.org>,
	dbaryshkov@...il.com, omegamoon@...il.com, eric.y.miao@...il.com,
	utx@...guin.cz, zaurus-devel@...ts.linuxtogo.org
Subject: Re: Zaurus CF tests -- ok

On Friday, April 15, 2011 11:38:17 PM Cyril Hrubis wrote:
> Hi!
> 
> > After getting _good_ power supply, I was able to untar and rm ltp tree
> > 100 times so far. 2.6.38, ext3. (So metan no, I do not see any weird
> > ext3 problems).
> 
> Hmm, I'm using original adapter, but who knows if it's okay to use...

I can lend you Eric's, but promise you won't break it or do anything weird to it 
;-)
> 
> > Another strange thing is... I see lots of duplicated keystrokes --
> > like type "pavel" but machine understands "paavel". But it only seems
> > to happen when I'm _not_ trying to debug it?!
> 
> That seems to be side effect of machine under load (it has gpio keyboard).

Yea ... it's that polled para-keyboard I guess.
> 
> > (
> > So... just because something needs 5V does not mean you should charge
> > it from USB.
> > 
> > Yes, I'm talking about zaurus. I noticed that it crashed rather
> > quickly when connected to USB power. (For example in tar/rm test).
> > So I took multimeter, and there was 4.15..4.5V on USB :-(.
> > 
> > With power from USB extension cable, it crashes in <5 minutes. It
> > seems to toggle charger a lot, as voltage on the cable is only
> > 4.2..4.5V. I guess it is software problem in the charging code.
> > )
> 
> The zaurus actually is AFAIK unable to run from battery when connected to
> the external power, so weak power line may explain some of the strange
> behaviour.

As for the charging code, do we even have anything even remotely resembling that 
?
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