diff --git a/[refs] b/[refs]
index 98cb767f2e04..6b1ec6517bd9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 586b9839273b3b58b28a26e4518be13366cecaeb
+refs/heads/master: 8383def69b8629df052f917acb844381bdd6e000
diff --git a/trunk/drivers/staging/comedi/drivers/dt2801.c b/trunk/drivers/staging/comedi/drivers/dt2801.c
index 5cce1b5f4484..b85c8366a396 100644
--- a/trunk/drivers/staging/comedi/drivers/dt2801.c
+++ b/trunk/drivers/staging/comedi/drivers/dt2801.c
@@ -720,12 +720,20 @@ static int dt2801_dio_insn_config(struct comedi_device *dev,
 		which = 1;
 
 	/* configure */
-	if (data[0]) {
+	switch (data[0]) {
+	case INSN_CONFIG_DIO_OUTPUT:
 		s->io_bits = 0xff;
 		dt2801_writecmd(dev, DT_C_SET_DIGOUT);
-	} else {
+		break;
+	case INSN_CONFIG_DIO_INPUT:
 		s->io_bits = 0;
 		dt2801_writecmd(dev, DT_C_SET_DIGIN);
+		break;
+	case INSN_CONFIG_DIO_QUERY:
+		data[1] = s->io_bits ? COMEDI_OUTPUT : COMEDI_INPUT;
+		return insn->n;
+	default:
+		return -EINVAL;
 	}
 	dt2801_writedata(dev, which);