The hardware reference states that USB access can be made via the flexible interface modules (FIMS). Connector X1 has 5 pins 72-77 reserved for USB. I cant relate the pin names to available USB specifications.
I am hoping that a USB mass storage device can be added and then accessed by the python file operations.
The USB signals (currently marked as reserved in the HRM) would allow Digi to provide a version of the module with on-module USB controller for USB host functionality. This variant has not been created.
As far as USB support through the FIM is concerned, the FIMs will support USB device low-speed only.
The NET+OS and Linux platforms provide complete integration flexibility. The latter also provides a Python interpreter implementation.
In NET+OS and Linux development kits, the FIM support is available.
For the Digi plug-and-play firmware, Digi needs to implemenet FIM-specific interface support. The initial release of the CC Wi-9P 9215 firmware currently does not support FIM interfaces.