http://www.lovett.com/~ade/freebsd.html
The executive summary is that after some unfortunate hardware failures, I picked up an ASUS A7V8X-X motherboard with a 6 USB 2.0 ports.
GENERIC doesn't appear to have ehci in it, so not a great deal happened. I then took the GENERIC kernel, ripped out all of the USB code from the kernel and enabled usbd(8) to hopefully do the right thing.
There's a single USB device connected up (an MS optical cordless wheelmouse, which works just fine with XP and Gentoo Linux, and is seen by 4.9-RELEASE, though nothing much happens with moused).
Here's what happened:
uhci0: <VIA 83C572 USB controller> port 0xb000-0xb01f irq 21 at device 16.0 on pci0
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <VIA 83C572 USB controller> port 0xa800-0xa81f irq 21 at device 16.1 on pci0
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhub0: port error, restarting port 1
uhub0: port error, giving up port 1
uhci2: <VIA 83C572 USB controller> port 0xa400-0xa41f irq 21 at device 16.2 on pci0
usb2: <VIA 83C572 USB controller> on uhci2
usb2: USB revision 1.0
uhub2: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhub1: port error, restarting port 1
uhub1: port error, giving up port 1
uhub1: port error, restarting port 2
uhub1: port error, giving up port 2
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xf1000000-0xf10000ff irq 21 at device 16.3 on pci0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
usb3: EHCI version 1.0
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
uhub0: port error, restarting port 2
uhub0: port error, giving up port 2
uhub0: port error, restarting port 1
uhub0: port error, giving up port 1
usb3: <EHCI (generic) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
uhub3: (0x1106) EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered
uhub2: port error, restarting port 1
uhub2: port error, giving up port 1
uhub2: port error, restarting port 2
uhub2: port error, giving up port 2
No mouse detected, usbd is running, but all the ports are dead. Disconnecting and reconnecting the mouse has absolutely no effect whatsoever.
If a friendly USB guru happens to be around, I can provide ssh and root access to the box, or if there are further diagnostics I can run, please let me know.
-aDe
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