Messages in this thread | | | From | Oliver Neukum <> | Subject | Re: Is it useful to support user level drivers | Date | Thu, 21 Jun 2001 23:09:04 +0200 |
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> Kernel space: > - irq 9 arrives from our device > - interrupts are disabled > - our kernel space micro handler is invoked > - interrupt source is checked > - if no notification is pending a signal is notificated for user space > (or a process is marked runnable) > - optionally our device interrupt generation is disabled > - handler returns > - interrupts are enabled
Then why bother ? Write a minimum conventional kernel driver implementing poll()
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