On Wed, Mar 01, 2006 at 07:39:06AM -0800, David Brownell wrote:
> On Wednesday 01 March 2006 1:09 am, Marc Singer wrote:
> > On Tue, Feb 28, 2006 at 10:29:03PM -0800, David Brownell wrote:
> > >
> > > http://www.linux-usb.org/usbtest/#gadgets
> > ...
> >
> > I'm not seeing an explanation of what the tests should look like. How
> > long should each one last? Most take about a second. A couple, 6, 7,
> > 8, and 9 take less than 20 seconds. 10 is still running after a few
> > minutes.
>
> If you run direct from the command line, many of the tests use defaults
> that add up to one second for full speed peripherals. I usually run that
> through the test script though, so the timings are different.
>
> Test #10 taking a few minutes? Sounds troublesome. If this is using
> an OHCI or EHCI host controller and you've compiled with USB_DEBUG,
> you'll find a /sys/class/usb_host/.../async dump of the control and
> bulk queues. If it doesn't change, it suggests the peripheral is just
> sitting there NAKing packets for some reason. You can find out just
> which packet, and then work backward from there to "which test". (One
> test requests 1KB of data, that's a good marker to count back from.
> You can correctly infer that I've seen test #10 turn up lots of bugs
> like that ...)
It's getting an error 84.
Wed Mar 1 06:49:26 PST 2006
** Control test cases:
test 9: ch9 postconfig
/proc/bus/usb/002/014 test 9, 55.293133 secs
test 10: control queueing
/proc/bus/usb/002/014 test 10 --> 84 (error 84)
test 14: control writes
/proc/bus/usb/002/014 test 14 --> 71 (error 71)
Wed Mar 1 09:14:25 PST 2006
** Control test cases:
test 9: ch9 postconfig
/proc/bus/usb/002/014 test 9 --> 71 (error 71)
test 10: control queueing
/proc/bus/usb/002/014 test 10 --> 71 (error 71)
test 14: control writes
/proc/bus/usb/002/014 test 14 --> 71 (error 71)
One oddity here is that these messages didn't appear until I pulled
the USB cable. Perhaps there's an output flushing problem in the test
code.
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