spelling fixes for sm3600 backend

backend/sm3600-color.c

@@ -221,13 +221,13 @@ TState StartScanColor(TInstance *this)
       case 75:
 	RegWrite(this,R_XRES,1, 0x20); /* ups, can  do only 100 dpi horizontal */
 	RegWrite(this,R_SWID, 2, 0xC000 | this->state.cxWindow);
-	RegWrite(this,0x34, 1, 0x83); /* halfs the vertical resolution */
+	RegWrite(this,0x34, 1, 0x83); /* halves the vertical resolution */
 	RegWrite(this,0x47,1,0xC0); /* reduces the speed a bit */
 	break;
       case 100:
 	RegWrite(this,R_XRES,1, 0x20);
 	RegWrite(this,R_SWID, 2, 0xC000 | this->state.cxWindow);
-	RegWrite(this,0x34, 1, 0x63); /* halfs the vertical resolution */
+	RegWrite(this,0x34, 1, 0x63); /* halves the vertical resolution */
 	RegWrite(this,0x47,1,0xC0); /* reduces the speed a bit */
 	/* I have no idea, what these differences are good for. The seem to produce
 	   a slight blue presence.
@@ -243,14 +243,14 @@ TState StartScanColor(TInstance *this)
 	RegWrite(this,0x08,2, 0x6A6A);
 	RegWrite(this,R_XRES,1, 0x2A);
 	RegWrite(this,R_SWID, 2, 0x4000 | this->state.cxWindow);
-	RegWrite(this,0x34, 1, 0x03); /* halfs the vertical resolution */
+	RegWrite(this,0x34, 1, 0x03); /* halves the vertical resolution */
 	RegWrite(this,0x47,1,0xC0); /* reduces the speed a bit */
 	this->state.szOrder=ORDER_RGB;
 	break;
       case 600:
 	RegWrite(this,R_XRES,1, 0x3F);
 	RegWrite(this,R_SWID, 2, 0xC000 | this->state.cxWindow);
-	RegWrite(this,0x34, 1, 0x03); /* halfs the vertical resolution */
+	RegWrite(this,0x34, 1, 0x03); /* halves the vertical resolution */
 	RegWrite(this,0x47,1,0xC2); /* reduces the speed a bit */
 	break;
       case 1200:

backend/sm3600-homerun.c

@@ -181,7 +181,7 @@ static TLineType GetLineType(TInstance *this)
   else
     bHolesOk=false;
   lMedian=lSum/cchBulk;
-  /* this is *definitly* dirty style. We should pass the information
+  /* this is *definitely* dirty style. We should pass the information
      by other means... */
   if (bHolesOk)
     {

backend/sm3600-scanutil.c

@@ -85,7 +85,7 @@ void debug_printf(unsigned long ulType, const char *szFormat, ...)
 
 SetError(error, format, ...)
 
-The program is aborted, all handles and ressources are freed (this
+The program is aborted, all handles and resources are freed (this
 being global) and the user gets a nice panic screen :-)
 
 ********************************************************************** */

backend/sm3600.c

@@ -672,7 +672,7 @@ SetupInternalParameters(TInstance *this)
 SANE_Status
 sane_get_parameters (SANE_Handle handle, SANE_Parameters *p)
 {
-  /* extremly important for xscanimage */
+  /* extremely important for xscanimage */
   TInstance *this;
   this=(TInstance*)handle;
   SetupInternalParameters(this);
@@ -714,7 +714,7 @@ sane_start (SANE_Handle handle)
   if (this->state.bScanning) return SANE_STATUS_DEVICE_BUSY;
   rc=SetupInternalParameters(this);
   this->state.bCanceled=false;
-  if (!rc) rc=DoInit(this); /* oopsi, we should initalise :-) */
+  if (!rc) rc=DoInit(this); /* oopsi, we should initialise :-) */
   if (!rc && !this->bOptSkipOriginate) rc=DoOriginate(this,true);
   if (!rc) rc=DoJog(this,this->calibration.yMargin);
   if (rc) return rc;