From 5dfc458188538a32f95c05f860587d2c542e14c1 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Tue, 14 Jun 2011 17:25:22 -0700
Subject: b100: added b100 host (squashed)

---
 host/include/uhd/transport/usb_zero_copy.hpp | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'host/include')

diff --git a/host/include/uhd/transport/usb_zero_copy.hpp b/host/include/uhd/transport/usb_zero_copy.hpp
index b39171fba..dc344ad8b 100644
--- a/host/include/uhd/transport/usb_zero_copy.hpp
+++ b/host/include/uhd/transport/usb_zero_copy.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -49,6 +49,7 @@ public:
      * \param recv_endpoint an integer specifiying an IN endpoint number
      * \param send_endpoint an integer specifiying an OUT endpoint number
      * \param hints optional parameters to pass to the underlying transport
+     * \return a new zero copy usb object
      */
     static sptr make(
         usb_device_handle::sptr handle,
@@ -56,6 +57,24 @@ public:
         size_t send_endpoint,
         const device_addr_t &hints = device_addr_t()
     );
+
+    /*!
+     * Make a wrapper around a zero copy implementation.
+     * The wrapper performs the following functions:
+     * - Pad commits to the frame boundary
+     * - Extract multiple packets on recv
+     *
+     * When enable multiple receive packets is set to true,
+     * the implementation inspects the vita length on transfers,
+     * and may split a single transfer into multiple managed buffers.
+     *
+     * \param usb_zc a usb zero copy interface object
+     * \param usb_frame_boundary bytes per frame
+     * \return a new zero copy wrapper object
+     */
+    static sptr make_wrapper(
+        sptr usb_zc, size_t usb_frame_boundary = 512
+    );
 };
 
 }} //namespace
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