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SubjectRe: Is it useful to support user level drivers
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.

(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)

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