[Qemu-devel] [Bug 1772165] Re: arm raspi2/raspi3 emulation has no USB support

[Davide Bacilieri]

Right now with 
`qemu-system-arm -kernel kernel7.img -dtb bcm2709-rpi-2-b.dtb -cpu arm1176 -M 
raspi2 -hda 2018-11-13-raspbian-stretch-full.img`
I can access the serial console using `Ctrl+Alt+3` in the QEMU window.
Using raspbian via this serial console is (as far as I can see) the same as 
using the Lite version.
The main display doesn't accept any mouse/ keyboard input, and `-device 
usb-mouse` generates a `qemu-system-arm: -device usb-mouse: No 'usb-bus' bus 
found for device 'usb-mouse` error, even after the `-machine usb=on` command

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https://bugs.launchpad.net/bugs/1772165

Title:
  arm raspi2/raspi3 emulation has no USB support

Status in QEMU:
  Confirmed

Bug description:
  Using Qemu 2.12.0 on ArchLinux.

  Trying to emulate arm device with `qemu-system-arm` and attach usb
  device for unput using

  ` -usb -device usb-host,bus=001,vendorid=0x1d6b,productid=0x0002 `

  # lsusb returns

  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 014: ID 13d3:3487 IMC Networks 
  Bus 001 Device 004: ID 0457:11af Silicon Integrated Systems Corp. 
  Bus 001 Device 003: ID 0bda:57e6 Realtek Semiconductor Corp. 
  Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card 
Reader Controller
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

  # qemu returns
  qemu-system-arm: -device usb-host,bus=001,vendorid=0x1d6b,productid=0x0002: 
Bus '001' not found

  
  Tried with connecting external usb keyboard but that didn't seem to work 
either.

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