On 19 June 2012 18:04, Stefan Fischer <sfischer@basi...> wrote:
> I've changed to following:
> added packrecord c
> flipped speed_hz and delay_usec fields
> same problem.
> I don't know whats really wrong.
> Is there any debug possibility?
Have you tried looking at errno? Do any of the other ioctls succeed
(e.g. SPI_IOC_WR_MAX_SPEED_HZ)? Do you have permissions to write to