00:11 <zmatt> since IEP has a way higher access latency from PRU than eCAP does

00:15 <zmatt> zZ

10:55 <jsolano> Hi, does it make sense to write a device tree overlay (or to change the default device tree) on a BBB where I want to write a driver that produces an output through one of the GPIOs of P9 ? I understand that device tree tweaks make sense when we want to describe connected external devices as they cannot self enumerate, but I just want to refer in my driver to a specific gpio pin and configure is as an

10:55 <jsolano> output, shall I just do that as part of driver initialization? perhaps using a KConfig description of the pin, without touching the device tree?

20:07 <zmatt> jsolano: no I would suggest using DT (with a custom compatible-string for your driver) to reference any DT-defined resources you need such as gpios

20:08 <zmatt> that's actually much easier than locating such resources "manually"

20:34 <jsolano> zmatt: right, I will try with an overlay. Thanks!