From: Eric Blossom <eb@comsec.com>
Date: Fri, 4 Sep 2009 10:48:15 +0000 (-0700)
Subject: stop sending short ethernet command packets.
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=f945bc6d3188d15c767706a2edbbda950a101c61;p=debian%2Fgnuradio

stop sending short ethernet command packets.
---

diff --git a/usrp2/host/lib/usrp2_impl.cc b/usrp2/host/lib/usrp2_impl.cc
index d1e85805..3d030432 100644
--- a/usrp2/host/lib/usrp2_impl.cc
+++ b/usrp2/host/lib/usrp2_impl.cc
@@ -300,8 +300,19 @@ namespace usrp2 {
 
 
   bool
-  usrp2::impl::transmit_cmd(void *cmd, size_t len)
+  usrp2::impl::transmit_cmd(void *cmd_, size_t len_)
   {
+    const void *cmd = cmd_;
+    int len = len_;
+    unsigned char tmp[64];
+
+    if (len_ < 64){		// pad to minimum ethernet frame size
+      memset(tmp, 0, sizeof(tmp));
+      memcpy(tmp, cmd_, len_);
+      cmd = tmp;
+      len = sizeof(tmp);
+    }
+
     return d_eth_buf->tx_frame(cmd, len) == eth_buffer::EB_OK;
   }