Link is up / Link is down HAL signals

[Michal Krenek]

Hello,
if I disconnect my network cable, I can immediately see this in dmesg:
b44: eth0: Link is down.

And if I connect cable again, I can see this:
b44: eth0: Link is up at 100 Mbps, full duplex.

But why there isn't some HAL signal while connecting and disconnecting network 
cable? There is EjectPressed signal while pressing eject button on CD/DVD and 
there should be also similar signals for connecting/disconnecting network 
cable, something like LinkUp and LinkDown.

I have also tried lshal and there is net.interface_up key, but it is 
always 'true', it doesn't matter if network cable is connected or not.

This would be great feature, because one can for example catch these signals 
in ivman and run /etc/rc.d/network start/stop (or some other programs) 
automatically.

Thanks,
Michal Krenek (Mikos)