On Wed, Oct 29, 2025 at 08:14:31AM -0700, [email protected] wrote: > I installed OpenBSD 7.7 on the same hardware and it now behaves just > like 7.8, wherein it sees the receiver as a usb hub, not a receiver.
[ ... ] > Everything worked for years from OpenBSD 7.4 to 7.7, and stopped at 7.8 > and now doesn't work at all in BSDs. It sounds to me like this USB device has two, (or more), overall modes of operation which are each activated by some magic sequence that the Linux code knows about but which the BSDs do not. Similar to some USB cellular modems which default to a mode of operation in which they initially appear as a CD-ROM drive containing driver software and then change to a completely different USB device upon receiving an eject command, but which can be re-configured with one or more AT commands to instead never present the simulated CD-ROM device at all, but connect immediately as a modem. Maybe somewhere along the line you've exposed the device to an OS which sent it some magic re-configuration command that's now left it in a mode which the BSD drivers are not designed to handle.
