RE: [PATCH 06/41] IB/hfi1: add char device instantiation code

Hefty, Sean
2015-06-17T15:10:05Z

> PSM2 (and PSM) uses this to dialog with the driver for hardware specific
> setup.
>
> I'm suspected at some point in the past, this was ioctl based and changed
> due to bias against ioctl.

Could this be distinguished based on a common command header?