Hi Jiada, On Sat, Sep 12, 2020 at 09:55:21AM +0900, Jiada Wang wrote: > From: Nick Dyer <nick.dyer@xxxxxxxxxxx> > > Some maXTouch chips (eg mXT1386) will not respond on the first I2C request > when they are in a sleep state. It must be retried after a delay for the > chip to wake up. Do we know when the chip is in sleep state? Can we do a quick I2C transaction in this case instead of adding retry logic to everything? Or there is another benefit for having such retry logic? Thanks. -- Dmitry