Re: [RFC] New Driver Model for 2.5

Alan Cox
2001-10-23T15:44:35Z

> Is this a realistic example? That is, is a kernel-side driver likely
> to be able to meaningfully extract state information from a scanner?
> And is it necessary?

It may be a bad example - but think about things like page settings. Do you
want a resume to scan in colour when you set black and white just before
suspend ?

> And for a scanner, if the current operation is a scan generating a GB
> of data, what happens if the disk subsystem is no longer accepting
> requests?

It should have refused to suspend because it was active

> In that case, SUSPEND_SAVE_STATE becomes more like SUSPEND_QUIESCE:
> stop accepting new requests, and complete current requests.

Maybe. That sounds like nice design and horrible implementation