Re: Honest does not pay here ...

Alan Cox
2003-01-08T00:47:26Z

On Wed, 2003-01-08 at 00:30, Larry McVoy wrote:
>
> I may be showing my ignorance here (won't be the first time) but this makes
> me wonder if Linux could provide a way to do "user level drivers". I.e.,
> drivers which ran in kernel mode but in the context of a process and had
> to talk to the real kernel via pipes or whatever. It's a fair amount of
> plumbing but could have the advantage of being a more stable interface
> for the drivers.

Its actually quite messy because level triggered interrupts create priority
handling problems and memory allocations create all sorts of amazing deadlocks