linux-kernel - Re: [PATCH] rtc-ds1307: True SMBus compatibility

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Message-Id: <200901061448.56500.david-b@pacbell.net>
Date:	Tue, 6 Jan 2009 14:48:55 -0800
From:	David Brownell <david-b@...bell.net>
To:	Ed Swierk <eswierk@...stanetworks.com>
Cc:	linux-i2c@...r.kernel.org, Alessandro Zummo <a.zummo@...ertech.it>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	BARRE Sebastien <sbarre@...lcc.com>
Subject: Re: [PATCH] rtc-ds1307: True SMBus compatibility

On Monday 05 January 2009, Ed Swierk wrote:
> Reading or writing registers repeatedly until they stick is rather
> nauseating but I'm aiming for correctness if not elegance.  I would
> appreciate any suggestions for improvement.

Can i2c_smbus_read_i2c_block_data()/i2c_ smbus_write_i2c_block_data()
work better -- without nauseating anyone?

Faking atomic writes doesn't seem "correct" to me.  Minimally there
is the case of an alarm misfiring.

- Dave
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