I'm new to USB-UIRT and Girder, but I think I'm understanding it all.
Based on previous posts here, it's not clear if the latest USB-UIRT girder plugin from www.usbuirt.com is supposed to work with the latest girder 4 builds or not. I think it might have at one time, but was recently broken in a later beta build. I'm not really sure though. I do know that when I installed it, the IR receive function worked fine, but I did not have any USB-UIRT actions (aka commands) available to me.
So in case anyone else is trying to use G4 and having problems, I did find that the driver and xml file attached a few posts down here: http://www.promixis.com/phpBB2/viewtopi ... ht=usbuirt, works for me.
Just fyi.