Ticket #16548 (new defect)

Opened 5 years ago

Last modified 5 years ago

Win7 guest does not enumerate COM port with new MacBook Pro

Reported by: BrendanSimon Owned by:
Component: USB Version: VirtualBox 5.1.14
Keywords: MacBook Pro Sierra 10.12.3 USB serial Cc:
Guest type: Windows Host type: Mac OS X


I have a new MacBook Pro (USB-C ports only) with macOS Sierra 10.12.3. It has a FTDI232R serial device connected.

Attaching the serial device causes Win7 to show the device in Device Manager with errors and it cannot enumerate a COM port.

This was never a problem with my old MacBook.

I tried using VirtualHere (USB over IP) between host and guest. This solution usually solves my USB problems with VB, but not in this case. It has the exact same symptoms.

I tried running VirtualHere on a RaspberryPi and then the FTDI232R device successfully enumerated in the Win7 guest.

Therefore I think something has changed with the USB on the new MacBook Pro, and VB needs modifications to support it properly.

Change History

comment:1 Changed 5 years ago by BrendanSimon

Might be a conflict between FTDI driver (from FTDI) and Apple's FTDI driver (according to some posts on some arduino forums).

I've removed my FTDI drivers (from FTDI) and my FTDI device works ok from macOS. Will try with VB soon and report back.

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