Index: uspace/lib/c/generic/ddi.c
===================================================================
--- uspace/lib/c/generic/ddi.c	(revision edb0a333c9779b0144668ae2411c63d9f4d4654b)
+++ uspace/lib/c/generic/ddi.c	(revision 5b082ba97e7288e1064574751f5fd623c8d8221f)
@@ -169,4 +169,34 @@
 }
 
+void pio_write_8(ioport8_t *reg, uint8_t val)
+{
+	arch_pio_write_8(reg, val);
+}
+
+void pio_write_16(ioport16_t *reg, uint16_t val)
+{
+	arch_pio_write_16(reg, val);
+}
+
+void pio_write_32(ioport32_t *reg, uint32_t val)
+{
+	arch_pio_write_32(reg, val);
+}
+
+uint8_t pio_read_8(ioport8_t *reg)
+{
+	return arch_pio_read_8(reg);
+}
+
+uint16_t pio_read_16(ioport16_t *reg)
+{
+	return arch_pio_read_16(reg);
+}
+
+uint32_t pio_read_32(ioport32_t *reg)
+{
+	return arch_pio_read_32(reg);
+}
+
 /** Register IRQ notification.
  *