On November 25, 2014 5:00:11 PM GMT+00:00, Lars-Peter Clausen <lars@xxxxxxxxxx> wrote: >On 11/25/2014 05:55 PM, Daniel Baluta wrote: >> On Tue, Nov 25, 2014 at 6:36 PM, Lars-Peter Clausen <lars@xxxxxxxxxx> >wrote: >>> On 11/25/2014 01:48 PM, Vlad Dogaru wrote: >>>> >>>> This is an attempt to address the problem of buffering in devices >which >>>> have >>>> different scan frequencies for different channels. >>> >>> >>> Will these frequencies still be related or completely arbitrary? >> >> For Kionix KMX61 we have the same set of frequencies for >> accelerometer and magnetometer (12.5, 25, 50, 100 Hz, etc) >> but for example at some point accel can be configured with 100 Hz >> and magnetometer with 12.5Hz. >> >> Does this matter? > >I'm wondering if it makes more sense to register multiple buffers or >devices >if the frequencies are completely unrelated. E.g. in the KMX61 case it >looks >as if its simply two logical devices in the same physical package. > >- Lars That is how we have handled this so far. Sometimes we have separate iio_devices for the logical functions e.g. hid-sensors and sometimes just multiple buffers.. I am struggling to find it now but one of the ADC drivers had a insanely complex nest sampling arrangement requiring 8 buffers. Final driver might have been simplified though... We might still need a few tweaks for multiple buffers not to having naming clashes.... Moving house so only have phone to hand! Jonathan > >-- >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
