On July 11, 2014 11:16:03 AM GMT+01:00, Martin Fuzzey <mfuzzey@xxxxxxxxxxx> wrote: >Hi all, > >I'm new to iio and have a question on acceleration units. > >Documentation/ABI/testing/sysfs-bus-iio states "after application of >scale and offset are m/s^2" > >However the mma8452 driver, when in 2G full scale mode provides a scale > >factor of 0.000977 > >/sys/bus/iio/devices/iio:device0# cat in_accel_scale >0.000977 > >Full scale positive raw value (12 bits) is 2047 so that gives 2G >(0.000977 * 2047) > >So this driver seems to be using G as units rather than m/s^2. > >Am I misunderstanding or is this a driver or doc bug? > Driver bug. Good catch. Do you want to prepare a patch? Thanks Jonathan >Regards, > >Martin > > >-- >To unsubscribe from this list: send the line "unsubscribe linux-iio" in >the body of a message to majordomo@xxxxxxxxxxxxxxx >More majordomo info at http://vger.kernel.org/majordomo-info.html -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
