diff --git a/src/add-ons/accelerants/intel_extreme/engine.cpp b/src/add-ons/accelerants/intel_extreme/engine.cpp
index a574f9a6ac..ba334e50e8 100644
--- a/src/add-ons/accelerants/intel_extreme/engine.cpp
+++ b/src/add-ons/accelerants/intel_extreme/engine.cpp
@@ -191,7 +191,7 @@ setup_ring_buffer(ring_buffer &ringBuffer, const char* name)
 
 /*! Return number of hardware engines */
 uint32
-intel_accelerant_engine_count(void) 
+intel_accelerant_engine_count(void)
 {
 	CALLED();
 	return 1;
diff --git a/src/add-ons/accelerants/matrox/engine/mga_proto.h b/src/add-ons/accelerants/matrox/engine/mga_proto.h
index baf102560e..6b3b4ab643 100644
--- a/src/add-ons/accelerants/matrox/engine/mga_proto.h
+++ b/src/add-ons/accelerants/matrox/engine/mga_proto.h
@@ -47,7 +47,7 @@ void dump_pins(void);
 
 /*DAC functions*/
 status_t gx00_dac_mode(int,float);
-status_t gx00_dac_palette(uint8*,uint8*,uint8*);
+status_t gx00_dac_palette(uint8 r[256],uint8 g[256],uint8 b[256]);
 
 status_t gx00_dac_pix_pll_find(display_mode target,float * result,uint8 *,uint8 *,uint8 *, uint8);
 status_t gx00_dac_set_pix_pll(display_mode target);
@@ -86,7 +86,7 @@ status_t gx00_crtc_validate_timing(
 );
 status_t gx00_crtc_set_timing(display_mode target);
 status_t gx00_crtc_depth(int mode);
-status_t gx00_crtc_set_display_start(uint32 startadd,uint8 bpp); 
+status_t gx00_crtc_set_display_start(uint32 startadd,uint8 bpp);
 status_t gx00_crtc_set_display_pitch(void);
 status_t gx00_crtc_dpms(bool display,bool h,bool v);
 status_t gx00_crtc_mem_priority(uint8);
@@ -100,8 +100,8 @@ status_t gx00_crtc_cursor_hide(void);
 /*XXX - validate_timing*/
 status_t g400_crtc2_set_timing(display_mode target);
 status_t g400_crtc2_depth(int mode);
-status_t g400_crtc2_set_display_pitch(void); 
-status_t g400_crtc2_set_display_start(uint32 startadd,uint8 bpp); 
+status_t g400_crtc2_set_display_pitch(void);
+status_t g400_crtc2_set_display_start(uint32 startadd,uint8 bpp);
 status_t g400_crtc2_dpms(bool display, bool h, bool v);
 
 /*acceleration functions*/
diff --git a/src/add-ons/accelerants/nvidia/engine/nv_proto.h b/src/add-ons/accelerants/nvidia/engine/nv_proto.h
index 7125c7c116..d6b8590913 100644
--- a/src/add-ons/accelerants/nvidia/engine/nv_proto.h
+++ b/src/add-ons/accelerants/nvidia/engine/nv_proto.h
@@ -51,7 +51,7 @@ void dump_pins(void);
 bool nv_dac_crt_connected(void);
 status_t nv_dac_mode(int,float);
 status_t nv_dac_dither(bool dither);
-status_t nv_dac_palette(uint8*,uint8*,uint8*);
+status_t nv_dac_palette(uint8 r[256],uint8 g[256],uint8 b[256]);
 status_t nv_dac_pix_pll_find(display_mode target,float * result,uint8 *,uint8 *,uint8 *, uint8);
 status_t nv_dac_set_pix_pll(display_mode target);
 status_t nv_dac_sys_pll_find(float, float*, uint8*, uint8*, uint8*, uint8);
@@ -59,7 +59,7 @@ status_t nv_dac_sys_pll_find(float, float*, uint8*, uint8*, uint8*, uint8);
 /* DAC2 functions */
 bool nv_dac2_crt_connected(void);
 status_t nv_dac2_mode(int,float);
-status_t nv_dac2_palette(uint8*,uint8*,uint8*);
+status_t nv_dac2_palette(uint8 r[256],uint8 g[256],uint8 b[256]);
 status_t nv_dac2_pix_pll_find(display_mode target,float * result,uint8 *,uint8 *,uint8 *, uint8);
 status_t nv_dac2_set_pix_pll(display_mode target);
 
@@ -78,7 +78,7 @@ status_t nv_crtc_validate_timing(
 	uint16 *vd_e,uint16 *vs_s,uint16 *vs_e,uint16 *vt);
 status_t nv_crtc_set_timing(display_mode target);
 status_t nv_crtc_depth(int mode);
-status_t nv_crtc_set_display_start(uint32 startadd,uint8 bpp); 
+status_t nv_crtc_set_display_start(uint32 startadd,uint8 bpp);
 status_t nv_crtc_set_display_pitch(void);
 status_t nv_crtc_dpms(bool, bool, bool, bool);
 status_t nv_crtc_mem_priority(uint8);
@@ -98,7 +98,7 @@ status_t nv_crtc2_validate_timing(
 	uint16 *vd_e,uint16 *vs_s,uint16 *vs_e,uint16 *vt);
 status_t nv_crtc2_set_timing(display_mode target);
 status_t nv_crtc2_depth(int mode);
-status_t nv_crtc2_set_display_start(uint32 startadd,uint8 bpp); 
+status_t nv_crtc2_set_display_start(uint32 startadd,uint8 bpp);
 status_t nv_crtc2_set_display_pitch(void);
 status_t nv_crtc2_dpms(bool, bool, bool, bool);
 status_t nv_crtc2_mem_priority(uint8);
diff --git a/src/add-ons/accelerants/via/engine/proto.h b/src/add-ons/accelerants/via/engine/proto.h
index c4d990abae..bcba62f6d4 100644
--- a/src/add-ons/accelerants/via/engine/proto.h
+++ b/src/add-ons/accelerants/via/engine/proto.h
@@ -41,7 +41,7 @@ void dump_pins(void);
 /* DAC functions */
 bool eng_dac_crt_connected(void);
 status_t eng_dac_mode(int,float);
-status_t eng_dac_palette(uint8*,uint8*,uint8*);
+status_t eng_dac_palette(uint8 r[256],uint8 g[256],uint8 b[256]);
 status_t eng_dac_pix_pll_find(display_mode target,float * result,uint8 *,uint8 *,uint8 *, uint8);
 status_t eng_dac_set_pix_pll(display_mode target);
 status_t eng_dac_sys_pll_find(float, float*, uint8*, uint8*, uint8*, uint8);
@@ -49,7 +49,7 @@ status_t eng_dac_sys_pll_find(float, float*, uint8*, uint8*, uint8*, uint8);
 /* DAC2 functions */
 bool eng_dac2_crt_connected(void);
 status_t eng_dac2_mode(int,float);
-status_t eng_dac2_palette(uint8*,uint8*,uint8*);
+status_t eng_dac2_palette(uint8 r[256],uint8 g[256],uint8 b[256]);
 status_t eng_dac2_pix_pll_find(display_mode target,float * result,uint8 *,uint8 *,uint8 *, uint8);
 status_t eng_dac2_set_pix_pll(display_mode target);
 
@@ -66,7 +66,7 @@ status_t eng_crtc_validate_timing(
 );
 status_t eng_crtc_set_timing(display_mode target);
 status_t eng_crtc_depth(int mode);
-status_t eng_crtc_set_display_start(uint32 startadd,uint8 bpp); 
+status_t eng_crtc_set_display_start(uint32 startadd,uint8 bpp);
 status_t eng_crtc_set_display_pitch(void);
 
 status_t eng_crtc_dpms(bool, bool, bool);
@@ -86,7 +86,7 @@ status_t eng_crtc2_validate_timing(
 );
 status_t eng_crtc2_set_timing(display_mode target);
 status_t eng_crtc2_depth(int mode);
-status_t eng_crtc2_set_display_start(uint32 startadd,uint8 bpp); 
+status_t eng_crtc2_set_display_start(uint32 startadd,uint8 bpp);
 status_t eng_crtc2_set_display_pitch(void);
 
 status_t eng_crtc2_dpms(bool, bool, bool);