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Date: Fri, 13 Jan 2006 21:46:27 +0100
From: Ollivier Robert <roberto@keltia.freenix.fr>
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Subject: Re: Abysmal performance on external usb drive
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According to Dread Pirate Mal:
> device on port 0 of an Intel S845W<mumble> based system. And yes, I do have
> ehci compiled in and the most current bios for the board :).

Please re-check then as if your controller support EHCI, it should appear
in the dmesg output.

> uhci0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> port 0xef40-0xef5f
> irq 1\
> 9 at device 31.2 on pci0
> usb0: <Intel 82801BA/BAM (ICH2) USB controller USB-A> on uhci0
> usb0: USB revision 1.0
> uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> uhub0: 2 ports with 2 removable, self powered
> umass0: Maxtor OneTouch II, rev 2.00/2.03, addr 2
> umass0: Get Max Lun not supported (STALLED)

> Transfer rates:
>         outside:       102400 kbytes in  98.968530 sec =     1035 kbytes/sec
>         middle:        102400 kbytes in  99.359594 sec =     1031 kbytes/sec
>         inside:        102400 kbytes in  98.932885 sec =     1035 kbytes/sec

Nice xfer rates for... USB1.

I have bought an external USB2 card and it appears like this:

uhci0: <VIA 83C572 USB controller> port 0xcc00-0xcc1f irq 9 at device 7.2 on pci0
uhci0: [GIANT-LOCKED]
[...]
ehci0: <NEC uPD 720100 USB 2.0 controller> mem 0xdffffd00-0xdffffdff irq 16 at device 10.2 on pci0
ehci0: [GIANT-LOCKED]
usb4: EHCI version 0.95
usb4: companion controllers, 3 ports each: usb2 usb3
usb4: <NEC uPD 720100 USB 2.0 controller> on ehci0
usb4: USB revision 2.0
uhub4: NEC EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 5 ports with 5 removable, self powered
-- 
Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr
Darwin snuadh.freenix.org Kernel Version 7.9.0: Wed Mar 30 20:11:17 PST 2005