Explanantion needed on how to get USB data from the roboRIO
 

My team has an idea for position tracking which requires the use of a USB port. Last year this obviously wasn't possible (without A LOT of workarounds and ordering parts from overseas). This year we were excited to see the roboRIO sporting 2 host USB ports. I'm the lead programmer and have been tasked with programming this system.

How would I go about getting data off of the USB? I found the kUSB value in the Port class that is used to construct a SerialPort object but I haven't had any luck getting data from the port through this method. (although I haven't really had much time to play with it yet)

Any help would be much appreciated and I thank you for the time you spent reading this.

Re: Explanantion needed on how to get USB data from the roboRIO
 

Does the device show up in the roboRIO webdashboard? If so, what is it's address? It should be INSTR::ASLR3 to work with the kUSB setting.

Re: Explanantion needed on how to get USB data from the roboRIO
 

To be totally honest I got the device hooked up 30 minutes before I left and only deployed one set of code to it. I failed to check the address of the device as I was hoping the code would be able to access it, instead the code must've crashed on startup as I got "no robot code" and red comms light when I deployed it.

Would it change anything if this device registered as a generic HID device?

Re: Explanantion needed on how to get USB data from the roboRIO
 

Yes. The serial port class only works if the device is a serial port, ie linux recognizes it as a TTY or ACM device.

While it should be possible to use a generic HID device through linux interfaces, WPILib doesn't provide a library for it.

Re: Explanantion needed on how to get USB data from the roboRIO
 

So I'd be writing my own code to handle making use of input then?

Is it worth the trouble to do this? Or should I just try and find another way?