On September 19, 2010 at 13:43, cowch potato said...
The HDMI 1, 2 and 3 codes are not at all discrete. They are identical.
In the Panasonic link that Jason provided the Pronto Hex decodes as Panasonic IR protocol:
HDMI1 is device 128.4, function number 176.
HDMI2 is device 128.4, function number 177
HDMI3 is device 128.4, function number 178
The codes are
not identical. If you can reach the wrong conclusion about that, perhaps the testing has been sub-optimal?
Jason has also suggested Pronto Hex for function numbers 160-163.
So you have possibilites for 7 different IR signals.