[PATCH v2] i2c-mpc: generate START condition after STOP caused by read i2c_msg

Ben Dooks ben-linux at fluff.org
Wed May 27 07:33:51 EST 2009


On Tue, May 26, 2009 at 01:30:21PM +0200, Esben Haabendal wrote:
> On Tue, May 19, 2009 at 7:22 AM, Esben Haabendal <eha at doredevelopment.dk> wrote:
> > This fixes MAL (arbitration lost) bug caused by illegal use of
> > RSTA (repeated START) after STOP condition generated after last byte
> > of reads. With this patch, it is possible to do an i2c_transfer() with
> > additional i2c_msg's following the I2C_M_RD messages.
> >
> > It still needs to be resolved if it is possible to fix this issue
> > by removing the STOP condition after reads in a robust way.
> >
> > Signed-off-by: Esben Haabendal <eha at doredevelopment.dk>
> > ---
> > ?drivers/i2c/busses/i2c-mpc.c | ? ?9 +++++++--
> > ?1 files changed, 7 insertions(+), 2 deletions(-)
> 
> Any blockers to get this accepted?

It would be nice to get an ack from someone who can actually test
the driver before getting this merged.
 
> /Esben
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-- 
Ben (ben at fluff.org, http://www.fluff.org/)

  'a smiley only costs 4 bytes'



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