On Tue, 20 Mar 2007 11:48:27 +0100
Matthias Drochner <M.Drochner@fz-juelich.de> wrote:

> 
> What hardware is this -- what host controller type, and does
> it happen with all low/full/high speed devices?

I don't know because I have only a USB1 device.
 
> I did some optimisation to the uhub code to avoid useless
> port scans. This worked well with my hardware (ehci/ohci
> and an external hub).

Hardware:

uhci0 at pci0 dev 29 function 0: Intel 82801GB/GR USB UHCI Controller
(rev. 0x01) uhci0: interrupting at ioapic0 pin 20 (irq 15)
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801GB/GR USB UHCI Controller
(rev. 0x01) uhci1: interrupting at ioapic0 pin 17 (irq 10)
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801GB/GR USB UHCI Controller
(rev. 0x01) uhci2: interrupting at ioapic0 pin 18 (irq 14)
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3 at pci0 dev 29 function 3: Intel 82801GB/GR USB UHCI Controller
(rev. 0x01) uhci3: interrupting at ioapic0 pin 19 (irq 5)
usb3 at uhci3: USB revision 1.0
uhub3 at usb3
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7: Intel 82801GB/GR USB EHCI Controller
(rev. 0x01) ehci0: interrupting at ioapic0 pin 20 (irq 15)
ehci0: BIOS has given up ownership
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
usb4 at ehci0: USB revision 2.0
uhub4 at usb4
uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered


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