Re: [PATCH 19/26] docs: i2c: smbus-protocol: improve I2C Block transactions description

Jean Delvare
2020-01-21T09:16:46Z

On Sun, 5 Jan 2020 23:50:05 +0100, Luca Ceresoli wrote:
> Clarify from the beginning what these transactions are, and specifically
> how they differ from the SMBus counterparts, i.e. the lack of a Count byte.
>
> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
> ---
> Documentation/i2c/smbus-protocol.rst | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/i2c/smbus-protocol.rst b/Documentation/i2c/smbus-protocol.rst
> index 7350e4b2c2fa..0edaf6069ac1 100644
> --- a/Documentation/i2c/smbus-protocol.rst
> +++ b/Documentation/i2c/smbus-protocol.rst
> @@ -282,9 +282,10 @@ This is implemented the following way in the Linux kernel:
> I2C Block Transactions
> ======================
>
> -The following I2C block transactions are supported by the
> -SMBus layer and are described here for completeness.
> -They are *NOT* defined by the SMBus specification.
> +The following I2C block transactions are similar to the SMBus Block Read
> +and Write operations, except these do not have a Count byte. They are
> +supported by the SMBus layer and are described here for completeness, but
> +they are *NOT* defined by the SMBus specification.
>
> I2C block transactions do not limit the number of bytes transferred
> but the SMBus layer places a limit of 32 bytes.

Reviewed-by: Jean Delvare <jdelvare@suse.de>

--
Jean Delvare
SUSE L3 Support