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Date:      Fri, 28 Sep 2018 13:53:56 +0000
From:      bugzilla-noreply@freebsd.org
To:        usb@FreeBSD.org
Subject:   [Bug 231782] a USB frame from an interrupt endpoint may be missed
Message-ID:  <bug-231782-19105-vcN4BWDVjB@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-231782-19105@https.bugs.freebsd.org/bugzilla/>
References:  <bug-231782-19105@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D231782

Hans Petter Selasky <hselasky@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |hselasky@FreeBSD.org

--- Comment #1 from Hans Petter Selasky <hselasky@FreeBSD.org> ---
Hi,

In FreeBSD there is "usbdump -i usbusX -f Y -s 65536 -vvv" where X.Y are the
numbers after ugen.

If you are using BULK, unless you clear-halt the endpoint after cancelling,=
 one
packet may get lost due to incorrect data-toggle values at the USB wire lev=
el.

--HPS

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