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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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