improvements to documentation

host_usb_mixer_control/README

@@ -59,7 +59,7 @@ Get the weight value in the mixer. The second argument should
 correspond to the values shown by the --display-unit command. Values
 can range from -127db to +128db with the special value -inf for mute.
 
-    --set-mixer-souces  mixer_id, dst_channel_id, src_channel_id
+    --set-mixer-source  mixer_id, dst_channel_id, src_channel_id
 
 Allows the selection of the mixer inputs.  Sets mixer input (dst) to src
 

host_usb_mixer_control/Win32/global.h

@@ -51,9 +51,11 @@
 // version defs
 //#include "version.h"
 
-
+// libwn.h pulls in windows.h
+#include "libwn.h"
 // TUSBAUDIO driver API
 #include "tusbaudioapi.h"
+#include "TUsbAudioApiDll.h"
 
 
 #endif  // __global_h__

host_usb_mixer_control/Win32/usb_mixer.cpp

@@ -4,14 +4,6 @@
 #include "usb_mixer.h"
 #include "global.h"
 
-
-//########## Thesycon .dll ##########
-// libwn.h pulls in windows.h
-#include "libwn.h"
-// TUSBAUDIO driver API
-#include "tusbaudioapi.h"
-#include "TUsbAudioApiDll.h"
-
 //driver interface
 TUsbAudioApiDll gDrvApi;