Anyone ever tries to patch -current (3.99.9) to include USB support?
I know there was a discussion some while ago about patching gt.c, but, I 
tried without luck..

I got this:
dmesg: (boot with an old Maxtor plucked in)
[snip]
viaide0: secondary channel interrupting at irq 15
atabus1 at viaide0 channel 1
uhci0 at pci0 dev 9 function 2: VIA Technologies VT83C572 USB Controller 
(rev. 0x02)
uhci0: can't map i/o space
uhci1 at pci0 dev 10 function 0: VIA Technologies VT83C572 USB 
Controller (rev. 0x61)
uhci1: interrupting at irq 9
usb0 at uhci1: USB revision 1.0
uhub0 at usb0
uhub0: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 10 function 1: VIA Technologies VT83C572 USB 
Controller (rev. 0x61)
uhci2: interrupting at irq 0
usb1 at uhci2: USB revision 1.0
uhub1 at usb1
uhub1: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
VIA Technologies VT8237 EHCI USB Controller (USB serial bus, interface 
0x20, revision 0x63) at
pci0 dev 10 function 2 not configured
tlp1 at pci0 dev 12 function 0: DECchip 21143 Ethernet, pass 4.1

[snip..]

umass0 at uhub1 port 1 configuration 1 interface 0
umass0: Cypress Semiconductor USB2.0 Storage Device, rev 2.00/0.01, addr 2
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, 1 lun per target
sd0 at scsibus0 target 0 lun 0: <Maxtor 9, 1366U4, 0\0000> disk fixed
sd0: 13029 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 26684784 sectors
wd0 at atabus0 drive 0: <ST360021A>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 57241 MB, 116301 cyl, 16 head, 63 sec, 512 bytes/sect x 117231408 
sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
[snap..]

Up runningm, and connecting a USBmem-stick:

umass1 at uhub1 port 2 configuration 1 interface 0
umass1: USB Flash Disk, rev 2.00/2.00, addr 3
umass1: using SCSI over Bulk-Only
scsibus1 at umass1: 2 targets, 1 lun per target
sd1 at scsibus1 target 0 lun 0: <JetFlash, TS512MJF2B, 2.00> disk removable
sd1: fabricating a geometry
sd1: 500 MB, 500 cyl, 64 head, 32 sec, 512 bytes/sect x 1024000 sectors

My config look likes this (diff from GENERIC):

[snip]
options     PCI_NETBSD_CONFIGURE

options         USBVERBOSE      # verbose USB device autoconfig messages

options   PCIBIOS
options   PCIBIOS_ADDR_FIXUP
options   PCIBIOS_BUS_FIXUP
options   PCIBIOS_INTR_FIXUP

# USB Controller and Devices

# PCI USB controllers
# The EHCI is not ready for prime time.
#ehci*  at pci? dev ? function ?        # Enhanced Host Controller
ohci*   at pci? dev ? function ?        # Open Host Controller
uhci*   at pci? dev ? function ?        # Universal Host Controller (Intel)

# CardBus USB controllers
#ehci*  at cardbus? dev ? function ?    # Enhanced Host Controller
#ohci*  at cardbus? dev ? function ?    # Open Host Controller

# USB bus support
#usb*   at ehci?
usb*    at ohci?
usb*    at uhci?

# USB Hubs
uhub*   at usb?
uhub*   at uhub? port ? configuration ? interface ?

# USB Generic driver
ugen*   at uhub? port ?

# USB Mass Storage
umass*  at uhub? port ? configuration ? interface ?
scsibus* at umass?

[snip]

Regard
Arne Jensen