Enabling internal USB expansion power

[geeksville]

Hi ya'll,

So I'm a pinetab noob trying to make lora go. I have some questions about the internal USB hub routing.


The block diagram on page 2 of the schematic says "SATA SSD" port(?) connected to the four port internal usb hub (via HOST-DP2/DM2):



But if I look on page 16 of the schematic is says that the "Docking" port is connected to port DP2/DM2 on the hub.  Also the docking portion of the schematic seems to have presence sensing to control power for that port.  So I assume it really is the "docking" connector for the keyboard add on.


So is the correct internal expansion port actually the "usb host" connected to HOST-DP1/DM1?
If so, I suspect the reason I don't see my lora device is that I need to turn on GPIO0-LDO on the PMIC?  Does anyone know how to do that yet?  (Or even how to get pmic status in /proc or somesuch so I can poke around?

Alternatively: Is there a recommended way to open the case on the Pinetab (so I can physically look to confirm that the Lora board that was supposed to be installed is actually present   )

Thanks much!