Re: Is it useful to support user level drivers

Alan Cox
2001-06-21T11:05:27Z

> level drivers (via ioperm, etc). However interrupts
> at user level are not supported, does anyone think
> it would be a good idea to add user level interrupt
> support ? I have a framework for it, but it still
> needs
> a lot of work.

The problem is that the IRQ has to be cleared in kernel space, because otherwise
you may deadlock.