linux-kernel - Re: [PATCH/RFC] hwmon: Add support for W83667HG-B

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Message-ID: <20100702165903.3d9dcdab@hyperion.delvare>
Date:	Fri, 2 Jul 2010 16:59:03 +0200
From:	Jean Delvare <khali@...ux-fr.org>
To:	Guenter Roeck <guenter.roeck@...csson.com>
Cc:	Jim Cromie <jim.cromie@...il.com>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ethan Lawrence <e.law87@...oo.com>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"lars4910@...mail.com" <lars4910@...mail.com>,
	"birdie@...monline.ru" <birdie@...monline.ru>,
	"jadcock@....net" <jadcock@....net>
Subject: Re: [PATCH/RFC] hwmon: Add support for W83667HG-B

On Fri, 2 Jul 2010 07:09:44 -0700, Guenter Roeck wrote:
> On Fri, Jul 02, 2010 at 05:51:23AM -0400, Jean Delvare wrote:
> > On Fri, 2 Jul 2010 01:31:44 -0700, Guenter Roeck wrote:
> > > On Fri, Jul 02, 2010 at 04:13:45AM -0400, Jean Delvare wrote:
> > > > On Fri, 2 Jul 2010 01:07:04 -0700, Guenter Roeck wrote:
> > > > > I'll also add a check for the HG-I.
> > > > 
> > > > Do you have a datasheet for that one too?
> > > > 
> > > No. However, since we have a tester, we will have test coverage,
> > > so I figured it should be worth a try. If it doesn't work
> > > I can still drop it from the final patch.
> > 
> > FYI, I have a datasheet, which unfortunately I am not allowed to share.
> > Please let me know if you want me to look up something for you.
> > 
> How about the changed registers ? Would give us an idea if the chip is closer to 
> 667 or to 667-B.

There is no summary of this available. The only way is to go through
both datasheets and compare all registers in sequence. This takes time,
which is exactly why I couldn't find the time to do it :(

> > > I suspect it is the same as the HG with a different chip ID.
> > 
> > Beware, it's a different device number (677 vs. 667) so I would expect
> > more differences.
>
> Ah, I missed that. I thought it was 667-I. Yes, you are right, that suggests
> more differences.

-- 
Jean Delvare
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