[mythtv-users] Re: Homebrew PVR Multi-Circuit

Steven White stevew at s2microsolutions.com
Mon Jun 21 15:05:27 EDT 2004

Ideally, what I would like to do is make something compatible with the 
UIRT2 protocol and add in the functionality of writing to the LCD and 
toggling the status LEDs.  This would allow for everything to be on one 
com port.  I'm an embedded microcontroller type programmer, not a Linux 
programmer, so I'm not sure that this is possible on the PC side.  Would 
it be possible to write a driver for LIRC that supports these extra 
commands (I'll ask some people in the LIRC project too)?  I would only 
need some messages transmitted on the serial port in plain text for this 
to work.  The microcontroller can make the decisions as to whether the 
data is IR, LED, or LCD related.  I'm trying to make the circuit take up 
as little hardware resources as possible.  I guess I could use the 
parallel port for IR I/O and then use a serial port for the LCD and LEDs 
as an alternative approach.  Does anyone have any other ideas or comments?


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