On 12/21/20 6:45 AM, yarl-baudig@xxxxxxxxxx wrote:
Hello,
Is it possible to create and bind an iio-trig-hrtimer as an interrupt-parent (or something like that) for a sensor?
If so, what would the dts look like?
The very first version of the iio-trig-hrtimer driver did have
devicetree bindings[1].
But since the iio-trig-hrtimer does not represent any piece of hardware
and the devicetree is a description of the hardware this was dropped
before upstreaming the driver. And a new interface for being able to
dynamically create hrtimer triggers using configfs was created.
Creating a hrtimer trigger and assigning it to a sensor has to be done
from a userspace application.
- Lars
[1]
https://github.com/analogdevicesinc/linux/blob/1594c10513b7becdf7ed6026bb70a07ba8118d5f/drivers/staging/iio/trigger/iio-trig-hrtimer.c#L166-L170
<https://github.com/analogdevicesinc/linux/blob/1594c10513b7becdf7ed6026bb70a07ba8118d5f/drivers/staging/iio/trigger/iio-trig-hrtimer.c#L166-L170>
