On 12/27/2017 02:04 AM, [email protected] wrote:
I’m thinking about polling the “position” entry in the filesystem using a timer
thread instead of using interrupts.
My reasoning for this is that the rotary knob will be changed by hand and I do
not expect to update the GUI cursors that this knob will control any faster
than 100ms.
So a 100ms poll really shouldn’t load my cpu too much, any reason I shouldn’t
use this approach? Have I missed anything?
Thanks
Scott
The driver uses the linux input subsystem, so it will appear as a
relative axis. Basically, if you have two knobs, linux will think it is
a mouse with no buttons. You can use libinput or any libevdev or any
other library that knows about linux input devices.
--
For more options, visit http://beagleboard.org/discuss
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