From owner-freebsd-bugs@FreeBSD.ORG  Mon Jul 16 07:38:55 2012
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From: Hans Petter Selasky <hselasky@c2i.net>
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Date: Mon, 16 Jul 2012 09:39:08 +0200
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Subject: Re: usb/169428: [ugen] ugen not detecting all endpoints on device
	[regression]
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Hi,

Can you list the configuration descriptor:

usbconfig -d X.Y dump_curr_config_desc

And also list all /dev/ugen nodes. Also note that starting from FreeBSD 8, you 
need to do some IOCTL's to set buffer sizes and such to get things working 
properly.

See:

http://svnweb.freebsd.org/base/head/usr.sbin/uathload/uathload.c?view=log

As a reference for simple BULK endpoint programming.

--HPS