linux-kernel - Re: [PATCH 5/6] X86 platform drivers: Remove EC dump from thinkpad

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Message-Id: <201007012131.20031.trenn@suse.de>
Date:	Thu, 1 Jul 2010 21:31:18 +0200
From:	Thomas Renninger <trenn@...e.de>
To:	Henrique de Moraes Holschuh <hmh@....eng.br>
Cc:	lenb@...nel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, platform-driver-x86@...r.kernel.org,
	astarikovskiy@...e.de, ibm-acpi-devel@...ts.sourceforge.net
Subject: Re: [PATCH 5/6] X86 platform drivers: Remove EC dump from thinkpad_acpi

On Thursday 01 July 2010 06:27:41 pm Henrique de Moraes Holschuh wrote:
> On Thu, 01 Jul 2010, Thomas Renninger wrote:
...
> I'd prefer if the above text gets replaced by something that adds a pointer
> to the new facility, instead of being just outright removed.  Also, the
> text about how to use the facility to detect tachometers and thermometers
> should be retained, if at all possible.
I agree. I'll repost this one in some days.

> Soes your helper userspace util do the "differential" analysis that
> thinkpad-acpi used to (the "*" after values that changed since last read)?
No.
But this should not be important enough to not get this removed.
It's hard to re-implement the exact behaviour (which can be handy for
specific problems, I agree).
With:
watch -n1 ec_access -r
you can have a close look at specific registers and see them changing.
Whatabout:
ec_access -r -s time(s)
Reads the table once and again after "time" seconds with stars
where modifications happened. Then someone can plug AC or hit a button
and look at the diff in EC registers afterwards.
This should be sufficient?
Better ideas?

Thanks,

       Thomas
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