Re: [PATCH] Wireless Security Lock driver.

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > > I've attached a gzipped version of my Wireless Security Lock patch
> > > for v2.6.13-rc4.
> > > A Wireless Security Lock (WSL or weasel :-) is made up of two parts.
> > > One part is a receiver which you plug into any available USB port.
> > > The other part is a transmitter which at fixed intervals sends
> > > "ping packets".
> > > A "ping packet" usually consists of an ID and a flag telling if the
> > > transmitter has just been turned on.
> >
> > Idea is good... but why don't you simply use bluetooth (built into
> > many notebooks) and bluetooth-enabled phone?
> >
> > Probably could be done in userspace, too :-).
> 
> There's a script to this on the gentoo wiki via BlueZ.
> 
> http://gentoo-wiki.com/TIP_Bluetooth_Proximity_Monitor
> 
> I personally think the problem with this approach is that most phones have 
> bluetooth enabled explicitly as an option, it doesn't run all the time, or 
> default on. Primarily this is because bluetooth can drain your phone's 
> battery (though, I don't know by how much, if you're not actually 
> transferring data over it).

I have bluetooth turned on all the time, anyway, and it does not drain
battery that badly (standby time goes down 30%?).

> A CR2032 cell, in a specific piece of kit, is going to last for a lot longer 
> than a phone battery.

Well, you know... phones have *rechargable* batteries :-).

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