usbmuxd is a requirement for USB tethering via iOS devices. The ipheth driver is included but is useless on its own, even the wiki for setting up such a connection
usbmuxd is licensed GPLv2 & GPLv3 so unfortunately it might not be able to be included in base.
usbmuxd is in ports as comms/usbmuxd. As GPL-licensed software it won't be brought into base. It seems there are a few things we ought to do related to this, though. IMO we have at least: (a) ipheth man page ipheth(4) says: At this point it might be necessary to run usbmuxd(1) (available in ports(7) at comms/usbmuxd): # usbmuxd --enable-exit --foreground --user root --verbose This seems overly noncommittal -- under what conditions might it be necessary to run usbmuxd? (b) document ipheth & usbmuxd in handbook or other documentation (c) better collaboration with usbmuxd upstream We have some patches in the port that might be able to go upstream, and we ought to submit pull requests to update upstream's readme -- there's no mention of BSDs at all: > Cross-Platform: Tested on Linux, macOS, Windows and Android platforms It would also be nice to add CI testing for FreeBSD, using either Cirrus-CI or one of the GitHub Actions workarounds. [port patches] https://cgit.freebsd.org/ports/tree/comms/usbmuxd/files [usbmuxd] https://github.com/libimobiledevice/usbmuxd