[PATCH] i2c-mpc: Do not generate STOP after read.

Joakim Tjernlund joakim.tjernlund at transmode.se
Mon Sep 28 08:26:54 EST 2009

Jean, I just noticed you pull request for i2c on LKML but I didn't see this
patch nor have I got any feedback from you. What is your view?


Wolfgang Grandegger <wg at grandegger.com> wrote on 25/09/2009 12:01:17:
> Joakim Tjernlund wrote:
> > The driver always ends a read with a STOP condition which
> > breaks subsequent I2C reads/writes in the same transaction as
> > these expect to do a repeated START(ReSTART).
> >
> > This will also help I2C multimaster as the bus will not be released
> > after the first read, but when the whole transaction ends.
> >
> > Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund at transmode.se>
> Tested-by: Wolfgang Grandegger <wg at grandegger.com>
> on a MPC8548 board with an up-to-date kernel. I did not realize any
> problems.
> Wolfgang.

More information about the Linuxppc-dev mailing list