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

[Weber Kai]

Hi!

I've googled: "usb" "designware" "otg" "datasheet"

I think this is the kernel driver for this device:
https://github.com/torvalds/linux/tree/master/drivers/usb/dwc3

Maybe it should be possible to use this as a reference? Maybe try to
redirect the proprietary drivers system calls? I don't know...

I've also found theses docs, which explains the device a little bit:
http://www.infradead.org/~mchehab/kernel_docs_pdf/driver-api.pdf
https://media.digikey.com/pdf/Data%20Sheets/Austriamicrosystems%20PDFs/AS3524.pdf
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/arria-10/a10_54018.pdf

Thanks.

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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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