Quoting Robert Schlabbach <rob...@gm...>:
> BTW, Colin, while I got you on the list: It appears your driver has no
> support for power management (just like mine:(). Have you looked into this,
> or do you know of a good resource? I tried reading the DDK documentation,
> but it only left me confused :(
>
I've not really looked at the power management stuff, and since I just
recently upgraded to Windows XP I've not reinstalled the DDK yet (although I
will soon).
> The key thing one has to do is to restore the hardware state after resuming
> e.g. from hibernating (i.e. complete power-off). Now the ugly thing about
> this is that if a BDA graph is running when you hibernate, it will only be
> put in _paused_ state, not stopped! Thus, you need to get the hardware back
> exactly to that paused state, which I think is rather complicated... Or
> maybe there is a way to request that the graph is put in stopped state? I
> haven't found any, though :(
I suppose if you stored the state of what you were told to do you could re-set
the parameters of the card when you were awoken so the graph wouldn't realise
anything had changed, but that could be tricky to make work, it seems a bit
annoying that it only pauses. I'll have a look once I've re-installed the DDK
to see if I can spot anything but I'm not sure if it's just going to have to
be done a difficult way or such.
Sorry I couldn't be of more help,
Colin
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