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SubjectRe: Turning lucent winmodem into soundcard (RT-Linux -when?)
Pavel Machek wrote:
> > Possibly kernel space will be used to enforce certain homologation
> > rules, like "can't stay off hook for > X seconds without a signal, or <
> > Y seconds". User-space will be involved in _setting_ those parameters,
> > then the kernel is responsible for enforcing them should the user-space
> > part die for some reason. I'm not sure how necessary that is.
>
> I do not think this is neccessary. Userland daemon should not die. If
> it dies, it closes device, and it is reasonable to hangup on such
> event. (Hangup is just the right response - always. That's what
> happens when you pull phone out of the socket.)

That seems ok for when the daemon dies. Daemons do die from time to
time unfortunately.

What about: we should not remain on hook for more than X hundred
milliseconds if over-current is sensed. Not especially difficult to
handle, but important? User-space scheduling is not _that_ reliable
especially under load.

-- Jamie

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