diff --git a/src/superio/winbond/w83977tf/superio.c b/src/superio/winbond/w83977tf/superio.c
index 8fb9075..b0c838e 100644
--- a/src/superio/winbond/w83977tf/superio.c
+++ b/src/superio/winbond/w83977tf/superio.c
@@ -49,14 +49,16 @@
 };
 
 static struct pnp_info pnp_dev_info[] = {
-	{ &ops, W83977TF_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
-	{ &ops, W83977TF_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
-	{ &ops, W83977TF_SP1,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
-	{ &ops, W83977TF_SP2,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
-	{ &ops, W83977TF_KBC,  PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, 0x07ff, 0x07ff, },
-	{ &ops, W83977TF_CIR,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
-	{ &ops, W83977TF_GAME_MIDI_GPIO1, PNP_IO0 | PNP_IO1 | PNP_IRQ0, 0x07ff, 0x07fe, },
-	{ &ops, W83977TF_ACPI, PNP_IRQ0, },
+	{ NULL, W83977TF_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
+	{ NULL, W83977TF_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
+	{ NULL, W83977TF_SP1,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
+	{ NULL, W83977TF_SP2,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
+	{ NULL, W83977TF_KBC,  PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1,
+		0x07ff, 0x07ff, },
+	{ NULL, W83977TF_CIR,  PNP_IO0 | PNP_IRQ0, 0x07f8, },
+	{ NULL, W83977TF_GAME_MIDI_GPIO1, PNP_IO0 | PNP_IO1 | PNP_IRQ0,
+		0x07ff, 0x07fe, },
+	{ NULL, W83977TF_ACPI, PNP_IRQ0, },
 };
 
 static void enable_dev(struct device *dev)