Re: Honest does not pay here ...

[Alan Cox]

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