lkml.org 
[lkml]   [2021]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 2/2] i2c:imx: Add an extra read at the end of an I2C slave read
On Fri, Nov 12, 2021 at 07:39:56AM -0600, minyard@acm.org wrote:
> From: Corey Minyard <minyard@acm.org>
>
> The I2C slave interface expects that the driver will read ahead one
> byte. The IMX driver/device doesn't do this, but simulate it so that
> read operations get their index set correctly.

From what I understand, the patch is correct but the description may be
wrong?

AFAIU the patch adds the slave event I2C_SLAVE_READ_PROCESSED to the
case when the last byte was transferred. We as the client got a NAK from
the controller. However, the byte WAS processed, so the event is ok and
not a dummy?

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2021-11-23 11:29    [W:3.098 / U:0.480 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site