[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/Documentation/sound/cards/index.rst b/src/kernel/linux/v4.14/Documentation/sound/cards/index.rst
new file mode 100644
index 0000000..c016f8c
--- /dev/null
+++ b/src/kernel/linux/v4.14/Documentation/sound/cards/index.rst
@@ -0,0 +1,19 @@
+Card-Specific Information
+=========================
+
+.. toctree::
+ :maxdepth: 2
+
+ joystick
+ cmipci
+ sb-live-mixer
+ audigy-mixer
+ emu10k1-jack
+ via82xx-mixer
+ audiophile-usb
+ mixart
+ bt87x
+ maya44
+ hdspm
+ serial-u16550
+ img-spdif-in