Staging: rspiusb: clean rspiusb code

This first patch makes checkpatch happier
Signed-off-by: NRichard Genoud <richard.genoud@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rspiusb/rspiusb.h

@@ -3,20 +3,28 @@
 
 #define PIUSB_MAGIC		'm'
 #define PIUSB_IOCTL_BASE	192
-#define PIUSB_GETVNDCMD		_IOR(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 1, struct ioctl_struct)
-#define PIUSB_SETVNDCMD		_IOW(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 2, struct ioctl_struct)
-#define PIUSB_WRITEPIPE		_IOW(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 3, struct ioctl_struct)
-#define PIUSB_READPIPE		_IOR(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 4, struct ioctl_struct)
-#define PIUSB_SETFRAMESIZE	_IOW(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 5, struct ioctl_struct)
-#define PIUSB_WHATCAMERA	_IO(PIUSB_MAGIC,  PIUSB_IOCTL_BASE + 6)
-#define PIUSB_USERBUFFER	_IOW(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 7, struct ioctl_struct)
-#define PIUSB_ISHIGHSPEED	_IO(PIUSB_MAGIC,  PIUSB_IOCTL_BASE + 8)
-#define PIUSB_UNMAP_USERBUFFER	_IOW(PIUSB_MAGIC, PIUSB_IOCTL_BASE + 9, struct ioctl_struct)
+
+#define PIUSB_IOR(offset) \
+	_IOR(PIUSB_MAGIC, PIUSB_IOCTL_BASE + offset, struct ioctl_struct)
+#define PIUSB_IOW(offset) \
+	_IOW(PIUSB_MAGIC, PIUSB_IOCTL_BASE + offset, struct ioctl_struct)
+#define PIUSB_IO(offset) \
+	_IO(PIUSB_MAGIC, PIUSB_IOCTL_BASE + offset)
+
+#define PIUSB_GETVNDCMD		PIUSB_IOR(1)
+#define PIUSB_SETVNDCMD		PIUSB_IOW(2)
+#define PIUSB_WRITEPIPE		PIUSB_IOW(3)
+#define PIUSB_READPIPE		PIUSB_IOR(4)
+#define PIUSB_SETFRAMESIZE	PIUSB_IOW(5)
+#define PIUSB_WHATCAMERA	PIUSB_IO(6)
+#define PIUSB_USERBUFFER	PIUSB_IOW(7)
+#define PIUSB_ISHIGHSPEED	PIUSB_IO(8)
+#define PIUSB_UNMAP_USERBUFFER	PIUSB_IOW(9)
 
 struct ioctl_struct {
 	unsigned char cmd;
 	unsigned long numbytes;
-	unsigned char dir;	//1=out;0=in
+	unsigned char dir;	/* 1=out; 0=in */
 	int endpoint;
 	int numFrames;
 	unsigned char *pData;