From mboxrd@z Thu Jan  1 00:00:00 1970
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Subject: [02/12] usb: usbtmc: Support Read Status Byte with SRQ per file handle
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Message-Id: <20180518131012.GA10497@kroah.com>
Date: Fri, 18 May 2018 15:10:12 +0200
To: guido@kiener-muenchen.de
Cc: linux-usb@vger.kernel.org, guido.kiener@rohde-schwarz.com, pankaj.adhikari@ni.com, steve_bayless@keysight.com, dpenkler@gmail.com
List-ID: <linux-usb.vger.kernel.org>
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=