ESP32-P4: Selecting the USB port for USB Modem

[simon-jouet]

Hi,

The ESP32-P4 has two real USB ports (HS + FS) as well as the JTAG/serial controller.

I'm trying, not very successfully, to setup one of the USB interface in device mode with TinyUSB (this is working fine) and the second one in Host mode (mostly for esp modem)

The issue that i'm having is that I have absolutely no clue how to use the other USB port with esp modem, or to specify which USB port to use.

I don't know if i'm tackling the problem from the wrong end or if I'm missing something but I can't figure any documentation on that (or any code for that matter)

If someone has a pointer that would be very appreciated!
Thanks a lot