Hi Guenter > https://lore.kernel.org/linux-hwmon/cover.1631021349.git.krzysztof.adamski@xxxxxxxxx/ > > That specifically includes the ability to enable or disable channels > using the standard 'status' property. While that series is primarily > for the n-factor property supported by the tmp421, the same approach > can be used for [temperature] sensor properties on other chips as well. Good pointer! I should be able to replicate that for the LTD (@0) and RTDs (1, 2, 3) in a similar way. > I put [temperature] in [] because we'd need to find a means to express > if the sub-nodes are for temperature, voltage, or something else, but > I think the basic principle is sound. Following the example from tmp421, this could then be like this: i2c { #address-cells = <1>; #size-cells = <0>; nct7802@28 { compatible = "nuvoton,nct7802"; reg = <0x28>; #address-cells = <1>; #size-cells = <0>; /* LTD */ input@0 { reg = <0x0>; status = "okay"; /* No "mode" attribute here*/ label = "local temp"; }; /* RTD1 */ input@1 { reg = <0x1>; mode = <0x2>; /* 3904 transistor */ label = "voltage mode"; }; input@2 { reg = <0x2>; mode = <0x4>; /* thermistor */ label = "thermistor mode"; }; /* RTD3 */ input@3 { reg = <0x3>; mode = <0x3>; /* thermal diode */ label = "current mode"; status = "disabled"; }; }; }; I noticed that "nct7802_temp_is_visible" only allows the temperature sensor to be visible for current and thermistor but not voltage. Is that right? Before I go and change the driver further, I'd like to make sure we agree on the interface. Also: Is nct7802_temp_is_visible called again after temp_type_store was called (I didn't try it)? Thanks Oskar.
