On Tue, May 23, 2023 at 08:43:09AM +0200, Wolfram Sang wrote: > Tested with a Renesas KingFisher board. The chip correctly disappears > from the I2C bus when the 'gnss0' device is not opened. What do you mean by "disappears from the I2C bus"? Does this device support both I2C and UART? Johan