Chromebooks embedded controller (EC) provides new field in the 3rd version of its protocol. Those values need to be exposed as sysfs entries. Minimum and maximum frequencies may probably be a standard iio ABI. There is an existing ABI (sampling_frequency_available) but only for discrete set of values. We have different possible solution and I want to ask interested people for the best one: 1. we keep the ABI proposed in this RFC (in the chromebook specific code) 2. we move min and max freq as 2 different standard ABI 3. we add a new standard iio ABI to set a range (sampling_frequency_range) 4. we change the 'sampling_frequency_available' ABI to return discrete values like '2 4 6 8' or a range like '[2 - 8]' 5. the solution I didn't think about Thanks Gwendal Grignou (1): iio: common: cros_ec_sensors: add extra sensor API .../ABI/testing/sysfs-bus-iio-cros-ec | 24 ++++ .../cros_ec_sensors/cros_ec_sensors_core.c | 126 +++++++++++++++++- .../linux/iio/common/cros_ec_sensors_core.h | 7 + include/linux/mfd/cros_ec_commands.h | 21 +++ 4 files changed, 177 insertions(+), 1 deletion(-) -- 2.19.2
