I’m trying to put together a device using the mangOH Red platform (with a WP7702 module, if that part is important). My application (a GPS tracker with a display) needs USB, serial, and WiFi internally and a USB host externally. I’m trying to figure out if this is possible with the on board WiFi adapter.
As I understand it:
- There’s one USB host (from the USB hub) going to the IOT connector and one to the external connector, so I’m good there.
- The third goes to a USB->SPI->MediaTek interface so that doesn’t consume a serial port. However, it’s not clear whether this port is actually used?
- There are two serial ports on the WP7702 module. One is the Linux console (which I would like to keep for debugging purposes). The other is mux’d with the IOT connector, the Raspberry Pi header, and the MediaTek.
The instructions I got (https://github.com/mangOH/mangOH/wiki/mangOH-Red-mt7697-WiFi) for getting the WiFi going seem to imply that the Serial port AND the SPI port are required for WiFi. Is that true?
Also, I get a lot of kernel OOPS()'s or PANIC’s when I have the driver loaded. I’m assuming that this is not yet supposed to work (which is a different frustration) and still is under development?