Hello,
Does anyone have advice for using J19 (USB OTG) for communicating with a USB device, like a HID?
There are forum posts about using this for battery charging, but I need to get actual data transfers working. Other USB ports on the kit go through a USB controller chip, which has driver support in LTIB. However, I couldn't find a configuration in LTIB that supports the J19 (USB OTG) port. J19 appears to go to the PMIC USB transceiver on the SOM. There is an option for enabling the ULPI interface between the PMIC and the SOM, but I'm still not able to see the device attach in Linux. I think I need to enable another driver, or maybe write my own (hopefully not) .
Is there documentation from LogicPD or maybe the PMIC manufacturer that anyone knows about? Can a generic USB driver be used from LTIB?
FYI, we're using the 2.4-4 BSP.
-Derek