On Mon, Mar 16, 2020 at 03:27:56PM +0100, Martin Kepplinger wrote: > Add simple fw_version file in debugfs to read the value from 0xa6 > which is the firmware version. If you switch to regmap I²C API you will get this for free for all defined registers. So, I highly recommend to consider above. -- With Best Regards, Andy Shevchenko