Subject: [PATCH] iio: mxs-lradc: compute temperature from channel 8 and 9

From: [email-masked] (Lars-Peter Clausen)
Date: Tue, 19 Nov 2013 12:31:35 +0100

On 11/19/2013 11:51 AM, Peter Meerwald wrote:
> 
>> The mxs LRADC is able to read an internal die temperature sensor. The
>> temperature has to be calculated from the value read on channel 8 and channel 9.
>> To be able to expose the result to hwmon, implement iio channel 8 as
>> (channel 9 - channel 8). Then, implement IIO_CHAN_INFO_SCALE and
>> IIO_CHAN_INFO_OFFSET so that it can be processed by hwmon through the in kernel
>> provider/consumer mechanism.
> 
> wouldn't IIO_CHAN_INFO_PROCESSED be more suitable than IIO_CHAN_INFO_RAW?

No. PROCESSED means it has the right scale and offset. This is still a raw
value.

- Lars