Ken Hornstein <kenh@cmf.nrl.navy.mil>  wrote:
 > The transmitter can be tuned by the hardware, so I think all you have
 > to do is set the IrDA bits, and it should presumably work fine.  The
 > receiver module has a built-in bandpass filter which the Shark
 > documentation claims prevents the use of IrDA; however, the
 > documentation for a IrDA receiver I have says _it_ has a bandpass
 > filter set at 38kHz which is the same as the one on the Shark, so I
 > don't know what to believe :-)

ok. so you've learned more than I have (not that I've spent a lot
of time trying)...

But I couldn't get the thing to blink, at all... nada...

(I have an IR scope and it can see my remotes blink)...

So are you saying there is additional hardware that has to be 
enabled before the 16550 can blink the leds?