Re: Handling Controllers with Acc/Gyro/Mag via HID system

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> Hi all,
> I'm in the process of fixing the HID descriptor for the PS3 Move
Controller. which has a particularly convoluted layout for it's
> Accelormeters, Gyros and Magnetometers involving 2 sets of data per output
> report.
> https://github.com/nitsch/moveonpc/wiki/Input-report

> The plan is/was to massage the HID descriptor so the first set of
Accels/Gyro/Mag appear in a set a axis, as a simple way of getting to
this
> data.

[snip]

> Given that more controllers are coming with 'motion' controls, is there a
> framework in place for unifying support?

A little more poking around has got me looking at the IIO subsystem, which
seems to be everything Accel/Gyro/Mag...

I note that there are a few 'HID'ish things there too, although I'm not
sure whether they are useful to us, or just intended for connecting motion
devices via the HID bus and then onto IIO.
--
drivers/iio/accel/hid-sensor-accel-3d.c
drivers/iio/gyro/hid-sensor-gyro-3d.c
drivers/iio/magnetometer/hid-sensor-magn-3d.c
drivers/iio/orientation/hid-sensor-rotation.c
--

Does the idea of the drivers for the HID (gaming) controllers opening up a
connection to IIO system and pushing the Accel/Gyro/Mag values there
(rather than exposing them on the joystick interface) make sense?

Are there any examples of other devices doing this, so I can re-use the code?
Simon.





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