On Tuesday 03 May 2011 02:23:00 free...@johnea.net wrote:
> Hello,
> 
> I posted this question to freebsd-questions, but no response. I hope
> posting to this list is correct.
> 
> There is a USB connected UPS device, that shows as /dev/ugen1.2 and is
> identified by usbconfig:
> 
> ugen1.2: <CP425HG CPS> at usbus1, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON
> 
> The affected system: No updates needed to update system to 8.1-RELEASE-p3.
> 
> The device continuously disconnects and re-enumerates, as shown in
> /var/log/messages:
> 
> May  1 14:36:57 epicenter root: Unknown USB device: vendor 0x0764 product
> 0x0501 bus uhub1 May  1 14:36:57 epicenter kernel: ugen1.2: <CPS> at
> usbus1
> May  1 14:37:19 epicenter kernel: ugen1.2: <CPS> at usbus1 (disconnected)
> May  1 14:37:22 epicenter root: Unknown USB device: vendor 0x0764 product
> 0x0501 bus uhub1 May  1 14:37:22 epicenter kernel: ugen1.2: <CPS> at
> usbus1
> 
> I had this problem in 7.1, but it was corrected in upgrading to 7.3.
> 
> Now that I've upgraded to 8.1 the problem is back.
> 
> The device is listed in the device quirks:
> 
> epicenter# usbconfig -d ugen1.2 dump_device_quirks | grep 0x0764
> VID=0x0764 PID=0x0501 REVLO=0x0000 REVHI=0xffff QUIRK=UQ_HID_IGNORE
> 
> dmesg | grep -v "<CPS> at usbus1" | tail yields:
> 
> usb_alloc_device: set address 2 failed (USB_ERR_TIMEOUT, ignored)
> usb_alloc_device: getting device descriptor at addr 2 failed,
> USB_ERR_STALLED
> 
> I believe lack of the UQ_HID_IGNORE quirk was the issue in 7.1.
> 
> Any ideas why 8.1 is not identifying this device?
> 
> Thank You!
> 
> johnea

Could you try 8-stable?

Also it might be worth trying an XHCI (USB 3.0) host controller device.

--HPS
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