PLEASE REVIEW: pwmgen-v2.c: is the read barrier actually needed?
PLEASE REVIEW: pwmgen-v2.c: is the read barrier actually needed?

(suspicion: not)

there is already a write barrier in update() pre-flip()

strahlex/machinekit,strahlex/machinekit,strahlex/machinekit,strahlex/machinekit,strahlex/machinekit,strahlex/machinekit,strahlex/machinekit