diff --git a/include/rthw.h b/include/rthw.h
index 8ee98378f..960437d5a 100644
--- a/include/rthw.h
+++ b/include/rthw.h
@@ -56,13 +56,14 @@ rt_uint8_t *rt_hw_stack_init(void       *entry,
  */
 typedef void (*rt_isr_handler_t)(int vector, void *param);
 
-struct rt_irq_desc {
-	rt_isr_handler_t handler;
-	void *param;
+struct rt_irq_desc
+{
+    rt_isr_handler_t handler;
+    void            *param;
 
 #ifdef RT_USING_INTERRUPT_INFO
-    char name[RT_NAME_MAX];
-    rt_uint32_t counter;
+    char             name[RT_NAME_MAX];
+    rt_uint32_t      counter;
 #endif
 };
 
@@ -72,10 +73,10 @@ struct rt_irq_desc {
 void rt_hw_interrupt_init(void);
 void rt_hw_interrupt_mask(int vector);
 void rt_hw_interrupt_umask(int vector);
-rt_isr_handler_t rt_hw_interrupt_install(int vector,
-                             rt_isr_handler_t  handler,
-                             void *param,
-                             char *name);
+rt_isr_handler_t rt_hw_interrupt_install(int              vector,
+                                         rt_isr_handler_t handler,
+                                         void            *param,
+                                         char            *name);
 
 rt_base_t rt_hw_interrupt_disable(void);
 void rt_hw_interrupt_enable(rt_base_t level);
@@ -95,7 +96,7 @@ void rt_hw_show_memory(rt_uint32_t addr, rt_uint32_t size);
 /*
  * Exception interfaces
  */
-void rt_hw_exception_install(rt_err_t (*exception_handle)(void* context));
+void rt_hw_exception_install(rt_err_t (*exception_handle)(void *context));
 
 #ifdef __cplusplus
 }