Function pamoja_ds18b20_thermometer_serial 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_ds18b20_thermometer_serial(
    thermometer: *const PamojaDs18b20Thermometer,
) -> *mut PamojaString

Returns the serial the kernel named a thermometer’s directory after.

Arguments

• thermometer - the thermometer.

Returns

The twelve hex digits after 28-, which the caller releases with crate::pamoja_string_free, or null when the file does not sit in a DS18B20’s directory or the thermometer is null.

Safety

thermometer must be a live handle or null.