Staging: frontier: Make checkpatch.pl happy with alphatrack.h

Signed-off-by: David Täht <d@teklibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/frontier/alphatrack.h

-#define show_set_bit(a) show_set_mbit(alphatrack,a)
-#define show_set_cmd(a) show_set_mcmd(alphatrack,a)
-#define show_set_int(a) show_set_mint(alphatrack,a)
-#define show_set_char(a) show_set_mchar(alphatrack,a)
-#define show_set_light(a) show_set_ebit(alphatrack,LightID,lights,a)
-#define show_set_button(a) show_set_ebit(alphatrack,ButtonID,button,a)
-
 struct alphatrack_icmd {
 	unsigned char cmd[12];
 };
@@ -13,6 +6,9 @@ struct alphatrack_ocmd {
 	unsigned char cmd[8];
 };
 
+/* These are unused by the present driver but provide documentation for the
+ * userspace API.
+ */
 enum LightID {
 	LIGHT_EQ = 0,
 	LIGHT_OUT,
@@ -62,8 +58,9 @@ enum LightID {
 #define BUTTONMASK_PRESS2      0x00008010
 #define BUTTONMASK_PRESS3      0x00002020
 
-// last 3 bytes are the slider position
-// 40 is the actual slider moving, the most sig bits, and 3 lsb
+/* last 3 bytes are the slider position
+ * 40 is the actual slider moving, the most sig bits, and 3 lsb
+ */
 
 #define BUTTONMASK_FLIP         0x40000000
 #define BUTTONMASK_F1           0x00100000
@@ -76,17 +73,4 @@ enum LightID {
 #define BUTTONMASK_PLUGIN       0x00000400
 #define BUTTONMASK_AUTO         0x00000100
 
-
-// #define BUTTONMASK_FOOTSWITCH FIXME
-
-// Lookup. name. midi out. midi in.
-
-struct buttonmap_t {
-	u32 mask;
-	short midi_in;
-	short midi_out;
-	char *name;
-//  	void (*function) (buttonmap_t *);
-  	void (*function) (void);
-};
-
+/* #define BUTTONMASK_FOOTSWITCH FIXME */