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

[Paul Zimmerman]

As of version 5.1, Qemu now supports USB on Raspberry PI 2 and 3. There
are a few caveats:

- If you are running a Raspbian image, you must add "dwc_otg.fiq_fsm_enable=0"
  to the '-kernel' command-line parameters.
- Raspbian images 2016-05-27-raspbian-jessie and earlier don't work, see
  Bug 1892604.
- It has only been tested with Raspbian and with mainline Linux kernels, so
  e.g. BSD kernels probably won't work

I guess this bug should be closed, I'll look into how to do that.

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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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