[linux-dvb] Re: [POLL] kdvb-fe, tune at initialisation, powermanagement

[Justin Cormack <justin@street-vision.com>]

Why not make bringing up the network interface also disable power
management, in the same way as an open fd. It is after all "open" in a
similar sense...

Justin

On Tue, 2002-10-29 at 11:18, Wolfgang Wershofen wrote:
> Dienstag, 29. Oktober 2002 at 10:13 Holger Waechtler wrote:
> 
> (...)
> 
> > The bad thing is that you explicitly have to disable power management 
> > for networking over DVB (or run an application all the time which 
> > processes frontend events;)
> 
> Does this mean, you'll have to tune the card new every time, the card is
> revived. Or the other way round: does tuning e.g. with dvbtune wake up
> the card?
> 
> I run my budget-card only for sat-networking purposes in a router. At
> the moment I tune the card right after booting to the desired freq, set
> up the network interface and I'm done with that. If I were to use power
> management in that router (which I do not at the moment), would I have
> to tune the card every time, a connection to the internet is requested
> to make shure, the card is awake and has the right frequency?
> What happens to the network-interface, when the card is powered down?
> Do I have to re-ifconfig this? This would add some additional seconds
> during connection, which is a disadvantage for dial-on-demand systems.
> 
> So I think, one has to decide between dial-on-demand and power
> management, when you apply the suggested changes. That's no problem for
> me but may be for others. Wouldn't it be possible to introduce some kind
> of driver option, with which the user can enable or disable power
> management according to his/her needs?
> 
> -- 
> Best regards
> Wolfgang Wershofen                            mailto:wolfgang@wershofen.com
> 
> 
> 
> -- 
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