diff --git a/src/add-ons/accelerants/radeon_hd/atombios/atom.h b/src/add-ons/accelerants/radeon_hd/atombios/atom.h
index 324cb1f4c6..79f6f1f2cb 100644
--- a/src/add-ons/accelerants/radeon_hd/atombios/atom.h
+++ b/src/add-ons/accelerants/radeon_hd/atombios/atom.h
@@ -25,10 +25,23 @@
 #ifndef ATOM_H
 #define ATOM_H
 
+
 #ifndef __HAIKU__
 #include <linux/types.h>
-#endif
 #include "card.h"
+#else
+struct card_info {
+    struct drm_device *dev;
+    void (* reg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
+        uint32_t (* reg_read)(struct card_info *, uint32_t);          /*  filled by driver */
+    void (* ioreg_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
+        uint32_t (* ioreg_read)(struct card_info *, uint32_t);          /*  filled by driver */
+    void (* mc_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
+        uint32_t (* mc_read)(struct card_info *, uint32_t);          /*  filled by driver */
+    void (* pll_write)(struct card_info *, uint32_t, uint32_t);   /*  filled by driver */
+        uint32_t (* pll_read)(struct card_info *, uint32_t);          /*  filled by driver */
+};
+#endif
 
 #define ATOM_BIOS_MAGIC		0xAA55
 #define ATOM_ATI_MAGIC_PTR	0x30
diff --git a/src/add-ons/accelerants/radeon_hd/bios.h b/src/add-ons/accelerants/radeon_hd/bios.h
index 0c98fbde39..80f8ca57c6 100644
--- a/src/add-ons/accelerants/radeon_hd/bios.h
+++ b/src/add-ons/accelerants/radeon_hd/bios.h
@@ -13,7 +13,7 @@
 
 // AtomBios includes
 extern "C" {
-//#include "atom.h"
+	#include "atom.h"
 }