linux-kernel - Re: [PATCH] docs: i2c: Fix return value of i2c_smbus

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Date:   Tue, 19 Nov 2019 09:35:24 +0000
From:   Peter Rosin <peda@...ntia.se>
To:     Lei YU <mine260309@...il.com>, Wolfram Sang <wsa@...-dreams.de>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] docs: i2c: Fix return value of i2c_smbus_xxx functions

On 2019-11-19 10:33, Peter Rosin wrote:
>>  'read' transactions return the read value, except for read_block, which
>>  returns the number of values read. The block buffers need not be longer
>>  than 32 bytes.
>>
> 
> Hmm, unrelated, but should that perhaps be "must not" instead of "need not"?

Ahhh, hit 'send' and it all becomes crystal clear. The *read* buffers need
not be larger than 32 bytes. Duh!

Cheers,
Peter