On Tue, Jan 23, 2024 at 11:52:01AM +0000, Alex Frolkin wrote: > Hi all, > > Has anyone had any success with getting a Huawei (Vodafone-branded) > K5161h 4G dongle working on OpenBSD? > > It looks like it should work with the umb(4) driver, but the problem is > getting it into the right mode. When I plug it in, it appears as a USB > CD drive, and there are magic commands you can send to it to make it > appear either as an Ethernet interface (where it does NAT and DHCP for > you, should be supported by the cdce(4) driver) or as an MBIM device > plus three USB serial ports (which should be supported by umb(4) and > hopefully ucom(4)). > > On FreeBSD and Linux, the mode switching is done by usb_modeswitch, > which supports switching it to either mode. usb_modeswitch compiles > fine on OpenBSD, but fails to actually send the magic command, and the > error code (from the usb_bulk_io function in libusb) says "unsupported > on this platform". > > The other approach is to find a magic AT command that would switch it to > MBIM mode permanently, but I've failed to find anything online for this > model, and AT commands that I've found for other models don't work on > this one. >
This may sound silly, but does ejecting it (e.g. "eject /dev/cd0") make a difference? I seem to recall some devices that (temporarily) switched mode after being ejected. --
