Index: uspace/lib/c/generic/ddi.c
===================================================================
--- uspace/lib/c/generic/ddi.c	(revision c6ae4c22299e63b14110ce5d5b471aa67f9861c9)
+++ uspace/lib/c/generic/ddi.c	(revision 17b3cc6490538b595c50dba6c1b9ad41139e2d8b)
@@ -176,7 +176,7 @@
  *
  */
-int register_irq(int inr, int devno, int method, irq_code_t *ucode)
+int irq_register(int inr, int devno, int method, irq_code_t *ucode)
 {
-	return __SYSCALL4(SYS_REGISTER_IRQ, inr, devno, method,
+	return __SYSCALL4(SYS_IRQ_REGISTER, inr, devno, method,
 	    (sysarg_t) ucode);
 }
@@ -190,7 +190,7 @@
  *
  */
-int unregister_irq(int inr, int devno)
+int irq_unregister(int inr, int devno)
 {
-	return __SYSCALL2(SYS_UNREGISTER_IRQ, inr, devno);
+	return __SYSCALL2(SYS_IRQ_UNREGISTER, inr, devno);
 }
 
Index: uspace/lib/c/include/ddi.h
===================================================================
--- uspace/lib/c/include/ddi.h	(revision c6ae4c22299e63b14110ce5d5b471aa67f9861c9)
+++ uspace/lib/c/include/ddi.h	(revision 17b3cc6490538b595c50dba6c1b9ad41139e2d8b)
@@ -53,6 +53,6 @@
 extern int pio_enable(void *, size_t, void **);
 
-extern int register_irq(int, int, int, irq_code_t *);
-extern int unregister_irq(int, int);
+extern int irq_register(int, int, int, irq_code_t *);
+extern int irq_unregister(int, int);
 
 #endif