Re: Is it useful to support user level drivers

Pavel Machek
2001-06-29T18:00:46Z

Hi!

> >No. The IRQ might be shared, and you get a slight problem if you just disabled
> >an IRQ needed to make progress for user space to handle the IRQ
>
> Two choices:
>
> - Disallow shared interrupts for usermode drivers.

That's hard... If you your notebook comes with soundcard and ltmodem
sharing the irq, and ltmodem only has userspace driver, you are
screwed.
Pavel
--
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org