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Diffstat (limited to 'results/scraper/launchpad-without-comments/1920752')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1920752 | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1920752 b/results/scraper/launchpad-without-comments/1920752 new file mode 100644 index 000000000..d82cba0e4 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1920752 @@ -0,0 +1,52 @@ +USB SoundCard Passthrough not working on arm64 + +Hello, + +I am virtualizing a armhf guest on a aarch64 host and was to use my Sound Blaster USB Soundcard as passthrough. + +armhf Guest is: Debian Buster +aarch64 host is a jetson nano. KVM is enabled. + +Latest qemu is built from sources. +The command I use for running is as follows: + +../qemu/build/qemu-system-aarch64 -M virt -m 2048 -smp 2 -cpu host,aarch64=off -enable-kvm \ +-kernel vmlinuz-4.19.0-14-armmp-lpae -initrd initrd.img-4.19.0-14-armmp-lpae -append 'root=/dev/vda2' \ +-device nec-usb-xhci -device usb-kbd -device usb-mouse -device usb-host,hostbus=1,hostport=2.3 -serial stdio \ +-device virtio-gpu-pci,virgl=on,xres=1600,yres=900 -display sdl,gl=on \ +-drive if=none,file=hda2.qcow2,format=qcow2,id=hd -device virtio-blk-device,drive=hd \ +-netdev user,id=mynet -device virtio-net-device,netdev=mynet \ +-bios edk2-arm-code.fd -no-reboot + + +Where are my lsusb -t shows: + +rreddy78@jetson-nano:~/Downloads$ lsusb -t +/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 5000M + |__ Port 1: Dev 3, If 0, Class=Hub, Driver=hub/4p, 5000M +/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/5p, 480M + |__ Port 2: Dev 6, If 0, Class=Hub, Driver=hub/4p, 480M + |__ Port 1: Dev 7, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M + |__ Port 1: Dev 7, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M + |__ Port 3: Dev 8, If 3, Class=Human Interface Device, Driver=usbhid, 12M + |__ Port 3: Dev 8, If 1, Class=Audio, Driver=snd-usb-audio, 12M + |__ Port 3: Dev 8, If 2, Class=Audio, Driver=snd-usb-audio, 12M + |__ Port 3: Dev 8, If 0, Class=Audio, Driver=snd-usb-audio, 12M + |__ Port 4: Dev 9, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M + +Within the VM I can see the usb as follows + +rreddy78@debian:~$ lsusb -t +/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M +/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M + |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 480M + |__ Port 2: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 480M + + +Its looks like some passthrough as but it seems like only for + + _ Port 3: Dev 8, If 3, Class=Human Interface Device, Driver=usbhid, 12M + +I am not sure if passthrough even works because this post I saw + +https://community.arm.com/developer/ip-products/system/f/embedded-forum/48031/usb-pass-through-in-qemu-command-line-for-arm-machines/168764#168764 \ No newline at end of file |