How to get /dev/uscanner0 to use ehci at USB2 speed, not uhci ?

[Julian H. Stacey]

Hi FreeBSD-USB@ people,
With 7.2-RELEASE, how should I get
/dev/uscanner0 to use ehci at USB2 speed, not uhci at USB1 ?
(Please feel free to reply RTFM ... URL= )

Logs & My config & what I've tried / looked at:

My USB scanner works, but its agoning slow in high res.

devd:
Processing event '+uscanner0 vendor=0x04b8 product=0x011d devclass=0xff
  devsubclass=0x00 release=0x0100 sernum="" intclass=0xff intsubclass=0x00
  at port=0 interface=0 vendor=0x04b8 product=0x011d devclass=0xff
  devsubclass=0x00 release=0x0100 sernum="" intclass=0xff intsubclass=0x00
  on uhub1'

dmesg extract:
  ------
  uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 21 at device 16.0 on pci0
  uhci0: [GIANT-LOCKED]
  uhci0: [ITHREAD]
  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> on usb0
  uhub0: 2 ports with 2 removable, self powered
  
  uhci1: <VIA 83C572 USB controller> port 0xd800-0xd81f irq 21 at device 16.1 on pci0
  uhci1: [GIANT-LOCKED]
  uhci1: [ITHREAD]
  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> on usb1
  uhub1: 2 ports with 2 removable, self powered
  
  uhci2: <VIA 83C572 USB controller> port 0xe000-0xe01f irq 21 at device 16.2 on pci0
  uhci2: [GIANT-LOCKED]
  uhci2: [ITHREAD]
  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> on usb2
  uhub2: 2 ports with 2 removable, self powered
  
  uhci3: <VIA 83C572 USB controller> port 0xe400-0xe41f irq 21 at device 16.3 on pci0
  uhci3: [GIANT-LOCKED]
  uhci3: [ITHREAD]
  usb3: <VIA 83C572 USB controller> on uhci3
  usb3: USB revision 1.0
  uhub3: <VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
  uhub3: 2 ports with 2 removable, self powered
  
  ehci0: <VIA VT6202 USB 2.0 controller> mem 0xfae00000-0xfae000ff irq 21 at device 16.4 on pci0
  ehci0: [GIANT-LOCKED]
  ehci0: [ITHREAD]
  usb4: EHCI version 1.0
  usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
  usb4: <VIA VT6202 USB 2.0 controller> on ehci0
  usb4: USB revision 2.0
  uhub4: <VIA EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4
  uhub4: 8 ports with 8 removable, self powered
  
  uscanner0: <EPSON EPSON Scanner, class 255/0, rev 1.10/1.00, addr 2> on uhub1
  uscanner0: at uhub1 port 1 (addr 2) disconnected
  uscanner0: detached
  uscanner0: <EPSON EPSON Scanner, class 255/0, rev 1.10/1.00, addr 2> on uhub1
  uscanner0: at uhub1 port 1 (addr 2) disconnected
  uscanner0: detached
  uscanner0: <EPSON EPSON Scanner, class 255/0, rev 1.10/1.00, addr 2> on uhub1
  ------

config -x /boot/kernel/kernel 	# includes all of
	device  uhci
	device  ehci
	device  uscanner

uname -a
  FreeBSD john.js.berklix.net 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Tue May  5 00:41:36 CEST 2009     jhs@@@john.js.berklix.net:/usr1/src/sys/amd64/compile/JOHN64.small  amd64

sane-find-scanner -q
found USB scanner (vendor=0x04b8, product=0x011d) at /dev/uscanner0

PS I had a quick look at
	http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/scanners.html
but nothing I noticed.

cd /usr/src ; find . -name \*devctl\*
./share/man/man4/devctl.4
# no binary just the manual.

Cheers,
Julian
-- 
Julian Stacey, BSD Unix Linux C Sys Eng Consultants Munich http://berklix.com
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