PCMCIA voltage key.

[Oleg Gusev]

I have just realized that it is impossible to insert the low 
voltage keyed PCMCIA card in j820. What does that mean ? 
AFAIK, the CF doesn't care if it is fed with 3.3V or 5V. Can we
simply assume that everything insertable in j820 must
work with 5V, and later lower the voltage if the card is 
capable of 3.3V? I don't (yet) know what wince is 
doing, but the hardware is functional there, while
in linux some things are broken.

 Oleg.