ChibiOS 2.6.8, until I can figure out where to get it from git.

firmware/chibios/os/hal/dox/i2s.dox

@@ -0,0 +1,38 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011,2012,2013 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+                                      ---
+
+    A special exception to the GPL can be applied should you wish to distribute
+    a combined work that includes ChibiOS/RT, without being obliged to provide
+    the source code for any proprietary components. See the file exception.txt
+    for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @defgroup I2S I2S Driver
+ * @brief   Generic I2S Driver.
+ * @details This module implements a generic I2S  driver.
+ * @pre     In order to use the I2S driver the @p HAL_USE_I2S option
+ *          must be enabled in @p halconf.h.
+ *
+ * @section i2s_1 Driver State Machine
+ *
+ * @ingroup IO
+ */