On Tue, 7 Jun 2005, Martin Kessler wrote:
> I'm using uhci, again there is no usbmon in 2.6.11, nor do I know what
> exactly you want me to printk, I still have the equipment for a few days
> so I can do some test here.
> Perhaps someone can send me patch and/or tell me what you exactly need?
I suspect the printk's we've been talking about won't do much good.
They'll only tell you what you already know: Those URBs are being
submitted and they aren't completing.
To get more information from the uhci-hcd driver, here's what you can do.
Make sure CONFIG_USB_DEBUG is turned on, and load the driver with
modprobe uhci-hcd debug=3
Mount a debugfs filesystem (the conventional mount point is
/sys/kernel/debug). Then at some point when the control URB has been
submitted and is stuck waiting for a reply from the UPS, cd to
/sys/kernel/debug/uhci/ and make a copy of the file corresponding to the
host controller the UPS is plugged into. Post that copy; it will contain
a lot of useful information about what the UHCI controller is doing.
Alan Stern
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