#endif
 
 /* Public interface */
-STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_status_enable(
-    const isys_irq_ID_t        isys_irqc_id)
+void isys_irqc_status_enable(const isys_irq_ID_t       isys_irqc_id)
 {
        assert(isys_irqc_id < N_ISYS_IRQ_ID);
 
 
 * @brief Get the isys irq status.
 * Refer to "isys_irq.h" for details.
 */
-STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_state_get(
+void isys_irqc_state_get(
     const isys_irq_ID_t        isys_irqc_id,
     isys_irqc_state_t *state)
 {
 * @brief Dump the isys irq status.
 * Refer to "isys_irq.h" for details.
 */
-STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_state_dump(
+void isys_irqc_state_dump(
     const isys_irq_ID_t        isys_irqc_id,
     const isys_irqc_state_t *state)
 {
  + -------------------------------------------------------*/
 
 /* Support functions */
-STORAGE_CLASS_ISYS2401_IRQ_C void isys_irqc_reg_store(
+void isys_irqc_reg_store(
     const isys_irq_ID_t        isys_irqc_id,
     const unsigned int reg_idx,
     const hrt_data     value)
        ia_css_device_store_uint32(reg_addr, value);
 }
 
-STORAGE_CLASS_ISYS2401_IRQ_C hrt_data isys_irqc_reg_load(
+hrt_data isys_irqc_reg_load(
     const isys_irq_ID_t        isys_irqc_id,
     const unsigned int reg_idx)
 {
 
 
 #if defined(ISP2401)
 
-STORAGE_CLASS_ISYS2401_IRQ_H void isys_irqc_state_get(
-    const isys_irq_ID_t        isys_irqc_id,
-    isys_irqc_state_t  *state);
+void isys_irqc_state_get(const isys_irq_ID_t   isys_irqc_id,
+                        isys_irqc_state_t      *state);
 
-STORAGE_CLASS_ISYS2401_IRQ_H void isys_irqc_state_dump(
-    const isys_irq_ID_t        isys_irqc_id,
-    const isys_irqc_state_t *state);
+void isys_irqc_state_dump(const isys_irq_ID_t  isys_irqc_id,
+                         const isys_irqc_state_t *state);
 
-STORAGE_CLASS_ISYS2401_IRQ_H void isys_irqc_reg_store(
-    const isys_irq_ID_t        isys_irqc_id,
-    const unsigned int reg_idx,
-    const hrt_data             value);
+void isys_irqc_reg_store(const isys_irq_ID_t   isys_irqc_id,
+                        const unsigned int     reg_idx,
+                        const hrt_data         value);
 
-STORAGE_CLASS_ISYS2401_IRQ_H hrt_data isys_irqc_reg_load(
-    const isys_irq_ID_t        isys_irqc_id,
-    const unsigned int reg_idx);
+hrt_data isys_irqc_reg_load(const isys_irq_ID_t        isys_irqc_id,
+                           const unsigned int  reg_idx);
 
-STORAGE_CLASS_ISYS2401_IRQ_H void isys_irqc_status_enable(
-    const isys_irq_ID_t        isys_irqc_id);
+void isys_irqc_status_enable(const isys_irq_ID_t isys_irqc_id);
 
 #endif /* defined(ISP2401) */
 
 
 
 #if defined(ISP2401)
 
-#ifndef __INLINE_ISYS2401_IRQ__
-
-#define STORAGE_CLASS_ISYS2401_IRQ_H extern
-#define STORAGE_CLASS_ISYS2401_IRQ_C extern
 #include "isys_irq_public.h"
 
-#else  /* __INLINE_ISYS2401_IRQ__ */
-
-#define STORAGE_CLASS_ISYS2401_IRQ_H static inline
-#define STORAGE_CLASS_ISYS2401_IRQ_C static inline
-#include "isys_irq_private.h"
-
-#endif /* __INLINE_ISYS2401_IRQ__ */
-
 #endif /* defined(ISP2401) */
 
 #endif /* __IA_CSS_ISYS_IRQ_H__ */