Updated readmes (and gitignore)

README.rst

@@ -1,18 +1,57 @@
 lib_xua
 =======
 
+Summary
+-------
+
 USB Audio Shared Components. For use in the XMOS USB Audio Refererence Designs.
 
+Features
+........
 
-Required software (dependencies)
-................................
+Key features of the various applications in this repository are as follows
 
-  * lib_logging
-  * lib_xud
+- USB Audio Class 1.0/2.0 Compliant
+
+- Fully Asynchronous operation
+
+- Support for the following sample frequencies: 8, 11.025, 12, 16, 32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384kHz
+
+- Input/output channel and individual volume/mute controls supported
+
+- Support for dynamically selectable output audio formats (e.g. resolution)
+
+- Field firmware upgrade compliant to the USB Device Firmware Upgrade (DFU) Class Specification
+
+- S/PDIF output
+
+- S/PDIF input
+
+- ADAT output
+
+- ADAT input
+
+- MIDI input/output (Compliant to USB Class Specification for MIDI devices)
+
+- DSD output (Native and DoP mode) at DSD64 and DSD128 rates
+
+- Mixer with flexible routing
+
+- Simple playback controls via Human Interface Device (HID)
+
+- Support for operation with Apple devices (requires software module sc_mfi for MFI licensees only - please contact XMOS)
+
+Note, not all features may be supported at all sample frequencies, simultaneously or on all devices.  Some features also require specific host driver support.
 
-Checking dependent libs
 
 Software version and dependencies
 .................................
 
 .. libdeps::
+
+Related Application Notes
+.........................
+
+The following application notes use this library:
+
+    * AN000246 - Simple USB Audio Device using lib_xua