On Apr 24, 2007, at 3:13 PM, Martin Husemann wrote:

> What would be a reasonable kqueue/kevent interface for this API?
> We should be able to avoid userland polling for sensor data, as the
> transfers now get pretty expensive.

Unfortunately, most of the sensors themselves are polling, and not  
interrupt driven.

Also, let's withhold judgement on how expensive it is until we have  
some real numbers that show there's a problem.

-- thorpej