Re: Is it useful to support user level drivers

[Dmitry A. Fedorov]

On Thu, 21 Jun 2001, Balbir Singh wrote:

> I realize that the Linux kernel supports user
> 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.

http://www.ibiblio.org/pub/Linux/kernel/irq-1.68.2.tar.gz
 ftp://ftp.inp.nsk.su/export/fedorov/soft/irq-1.68.2.tar.gz

(2.0.x - 2.2.x kernels)

kernel module to delivery hardware interrupts to user space
programs. Hardware interrupts (IRQ) are accessible by
character devices /dev/irq[0-15]. Interrupts delivered by
signals and select(2)/poll(2)