usb_alloc_device: Failure selecting configuration index 0:USB_ERR_TIMEOUT, port 1, addr 2 (ignored)

Hans Petter Selasky hselasky at c2i.net
Thu Nov 10 08:32:02 UTC 2011


On Thursday 10 November 2011 05:08:30 Shah, Vishal wrote:
> usb_alloc_device: Failure selecting configuration index
> 0:USB_ERR_TIMEOUT, port 1, addr 2 (ignored)\r\r\n

Hi,

The set config message is sent on the control endpoint. The set config message 
doesn't have any data stage, so the USB stack is waiting for the status stage 
callback. Either that is caused by:

1) Lost interrupt on EHCI

or

2) Device never sends the status stage (needs a bus analyzer for this).

Quirks you can set in /boot/loader.conf:

hw.usb.ehci.lostintrbug: 0
hw.usb.ehci.iaadbug: 0

--HPS


More information about the freebsd-usb mailing list