Hello! I have some news regarding the Ticket #2030. You may want to add this information to the ticket. Fe found out that it seems to be a hardware bug in the ali15x3 chip. The chip needs a reset when it falls into blocking state. However, the reset mechanism currently implemented in the ali15x3 driver does not work since the chip does not turn to busy state and keeps idle in our case. We changed the driver and now we do a reset when we detect the timeout condition. This works fine. Kind regards, Claudio Klingler