On Aug 17, 2009, at 9:49 AM, Thor Lancelot Simon wrote:
On Mon, Aug 17, 2009 at 06:45:56PM +0200, Marc Balmer wrote:- device specific C header files should go to /usr/include/dev (thus sys/dev in the src tree) - system C header files (kernel data structures) should go to /usr/ include/sys (thus sys/sys in the src tree)I agree with this -- except that I think few if any device specific C header files should be exposed to userland at all.
A device which must exports things to userland (ioctls, defines) should only do so from a file which contain those parts only. Only this file may be placed under /usr/include. The driver should include said file to get access to those bits.
This is just following the simple rules of separating interface from implementation.
Having said that, given <sys/gpio.h> is already in netbsd 5, it's too late to move.