Quectel RM502Q-AE 5G modem compatibility with umb(4) MBIM driver

Hello,

I am testing FreeBSD on a Raspberry Pi 5 with a Quectel RM502Q-AE 5G modem.

I noticed the recent umb(4) MBIM driver work and wanted to ask whether anyone has tested this modem or similar Quectel RM50xQ-series modules.

The modem supports MBIM under Linux when configured with the appropriate USB composition, however I am unsure whether:
- the USB VID/PID is recognised by umb(4);
- a particular Quectel USB composition is required;
- additional driver changes are required.

I am happy to provide:
- usbconfig output;
- dmesg output;
- USB descriptors;
- MBIM enumeration details;
- testing results.
Regards,0x00_0x31