[openbeos] Re: driver/module shutdown notification for R1
- From: François Revol <revol@xxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Sat, 14 Jun 2003 13:25:06 +0200 (CEST)
En réponse à Waldemar Kornewald <Waldemar.Kornewald@xxxxxx>:
> Hi,
> is there some way for a driver/module get notified when the system is
> shut
> down?
> The problem is, for example, that in BONE the ppp module does not know
> this
> and thus does not disconnect. This is a bad behaviour.
> Can we implement some additional ioctl and module code like
> B_UNLOAD_ON_SHUTDOWN. If it returns B_OK the kernel will unload the
> driver/module from memory. Otherwise it will leave it and turning the
> computer off should not cause an error.
> This is very useful for all kernel drivers/modules that must
> disconnect
> their hardware properly. Of course, ATA devices or a sound card do not
> need
> this feature, but maybe there are devices that need a turn-off signal.
>
> Here we come to the point that something like a real windows-like
> turn-the-computer-off screen is needed (if the computer cannot do that
> automatically).
>
> What do you think?
>
Good point...
I had thoughts about a power managment module, but not even simple
shutdown...
I'm not sure how we could hook in in R5 to get that behaviour, but
it's certainly a good addition to OBOS.
François.
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