On 11/24/23 06:55, Stefan Gloor wrote:
Some of the temperature/humidity sensors of the STS3x/SHT3x family are calibrated and factory-programmed with a unique serial number. This serial number can be used to obtain a calibration certificate via an API provided by the manufacturer (Sensirion). The serial number is exposed as a non-standard sysfs attribute. This feature is only available for STS32, STS33 and SHT33. The capability to read out the serial number is not documented for other sensors such as the STS31, but it is implemented in the ones I tested. To be safe, the driver will silently set the serial number to zero if it can not be read. Tested with: 1x STS32: serial number present 2x STS31: serial number present (feature not documented) 1x SHT31: serial number present (feature not documented) Signed-off-by: Stefan Gloor <code@xxxxxxxxxxxxxxx>
I am not going to accept this as sysfs attribute. Please implement using debugfs. Also, the attribute (sysfs or debugfs) should not exist if not supported. Please only provide if supported. Thanks, Guenter
