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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linux-i2c <linux-i2c@vger.kernel.org>
Subject: PMBus and SMBUS_BLOCK with "extended" lenght
Date: Fri, 31 Mar 2017 19:17:27 +1100	[thread overview]
Message-ID: <1490948247.3177.233.camel@kernel.crashing.org> (raw)

Hi folks !

Did anybody give thoughts to how we could support "smbus" block
transfers with a size up to 0xff ? This is an extension of smbus
that part of the PMbus protocol spec.

Our current code has a lot of places where I2C_SMBUS_BLOCK_MAX is
hard wired. Including down in almost all drivers.

So it would have to be an evolutionary process.

I was thinking a message flag along with a functionality bit
maybe ?

Cheers,
Ben.
 

             reply	other threads:[~2017-03-31  8:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-31  8:17 Benjamin Herrenschmidt [this message]
2017-03-31 16:33 ` PMBus and SMBUS_BLOCK with "extended" lenght Wolfram Sang
2017-04-19  5:40   ` Benjamin Herrenschmidt
2017-04-19  6:54     ` Wolfram Sang

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