On Wed, Dec 09, 2020 at 09:03:50AM -0800, Kevin Herbert wrote: > What is the protocol for the I2C_SLAVE_STOP event? I am working on my own > backend, and I've only tried it with this i.mx driver, and I do not receive > I2C_SLAVE_STOP at the end of every I2C transaction. It was my expectation > I'd receive this event at the end of every frame. In my testing, I've never > received this event at all. > > Where are the I2C registers on the i.mx documented? My board is an i.mx6sx. Hmm, from a glimpse, it looks the STOP event is only sent after a write and not after a read? Does this match your findings?