diff --git a/tools/lib/atusd.c b/tools/lib/atusd.c
index 85a0c96..10fb61b 100644
--- a/tools/lib/atusd.c
+++ b/tools/lib/atusd.c
@@ -89,7 +89,7 @@ static void atusd_cycle(struct atusd_dsc *dsc)
 	PDDATS = nSEL;
 
 	/* supply power */
-	PDDATS = VDD_OFF;
+	PDDATC = VDD_OFF;
 
 	/* return the bus clock output to the MMC controller */
 	PDFUNS = CLK;
@@ -254,6 +254,8 @@ static void *atusd_open(void)
 	/* start MMC clock output */
 	MSC_STRPCL = 2;
 
+	atusd_cycle(dsc);
+
 	return dsc;
 }