Hi Paul, > To debug the issue with file transfers to the Nokia N9 [1], I would like to pass through the USB Bluetooth wireless to QEMU. > > $ lsusb > Bus 001 Device 004: ID 1bcf:28ae Sunplus Innovation Technology Inc. Laptop Integrated Webcam HD > Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bluetooth wireless interface > Bus 001 Device 002: ID 8087:8001 Intel Corp. Integrated Hub > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > $ ls -ld /dev/bus/usb/001/003 > crw-rw-rw- 1 root root 189, 2 13. Jan 23:05 /dev/bus/usb/001/003 > > Then following Leif’s article *QEMU USB host device pass-through* [1], I run > > $ qemu-system-x86_64 -version > QEMU emulator version 6.2.0 (Debian 1:6.2+dfsg-1) > Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers > $ sudo qemu-system-x86_64 -cpu host -m 2G -enable-kvm -usb -device usb-host,vendorid=0x8087,productid=0x0a2a -hda /dev/shm/debian-64.img -net nic -net user,hostfwd=tcp::22223-:22 > > (`-device usb-host,hostbus=1,hostport=3` did *not* work for me.) > > In QEMU with *linux-image-5.15.0-2-amd64* 5.15.5-2 and *bluez* 5.62-2 the device is now detected, but bluetoothctl does not detect the controller. (Starting QEMU as root does not make a difference.) > > # lsusb > Bus 001 Device 002: ID 8087:0a2a Intel Corp. Bluetooth wireless interface > Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > # lsusb -t > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M > |__ Port 1: Dev 2, If 0, Class=Wireless, Driver=btusb, 12M > |__ Port 1: Dev 2, If 1, Class=Wireless, Driver=btusb, 12M > > # bluetoothctl > Agent registered > [bluetooth]# list > [bluetooth]# > > # systemctl status bluetooth > ● bluetooth.service - Bluetooth service > Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled) > Active: active (running) since Thu 2022-01-13 23:05:25 CET; 6min ago > Docs: man:bluetoothd(8) > Main PID: 400 (bluetoothd) > Status: "Running" > Tasks: 1 (limit: 2326) > Memory: 4.4M > CPU: 24ms > CGroup: /system.slice/bluetooth.service > └─400 /usr/libexec/bluetooth/bluetoothd > > Jan 13 23:05:25 qemu systemd[1]: Starting Bluetooth service... > Jan 13 23:05:25 qemu bluetoothd[400]: Bluetooth daemon 5.62 > Jan 13 23:05:25 qemu systemd[1]: Started Bluetooth service. > Jan 13 23:05:25 qemu bluetoothd[400]: Starting SDP server > Jan 13 23:05:25 qemu bluetoothd[400]: Bluetooth management interface 1.21 initialized > > Linux in QEMU logs: > > > # dmesg | grep -e Bluetooth -e hci0 > [ 4.385414] Bluetooth: Core ver 2.22 > [ 4.385453] Bluetooth: HCI device and connection manager initialized > [ 4.385741] Bluetooth: HCI socket layer initialized > [ 4.385744] Bluetooth: L2CAP socket layer initialized > [ 4.385751] Bluetooth: SCO socket layer initialized > [ 4.593802] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 > [ 4.593806] Bluetooth: BNEP filters: protocol multicast > [ 4.593809] Bluetooth: BNEP socket layer initialized > [ 6.544261] Bluetooth: hci0: Reading Intel version command failed (-110) > [ 6.544310] Bluetooth: hci0: command tx timeout > > The firmware is installed: > > # ls /lib/firmware/intel/ibt-hw-37.8.10-fw-1.10.3.11.e.bseq > /lib/firmware/intel/ibt-hw-37.8.10-fw-1.10.3.11.e.bseq > > Do you have an idea, how to get it working? actually I never bothered with passing through USB directly. I let the host keep the hci0 and then use something like btproxy or alike to forward the HCI device into the guest as virtio_bt. Qemu is missing support for virtio_bt device and most of the code I am using is not public, but something someone can work on inside Qemu. Regards Marcel
