diff --git a/dvb-core/dvb_ca_en50221.c b/dvb-core/dvb_ca_en50221.c
index c398c39..26525b0 100644
--- a/dvb-core/dvb_ca_en50221.c
+++ b/dvb-core/dvb_ca_en50221.c
@@ -194,7 +194,7 @@ static void dvb_ca_en50221_thread_wakeup(struct dvb_ca_private *ca);
 static int dvb_ca_en50221_read_data(struct dvb_ca_private *ca, int slot,
 				    u8 *ebuf, int ecount);
 static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
-				     u8 *ebuf, int ecount);
+				     u8 *ebuf, int ecount, u8 flags);
 
 /**
  * Safely find needle in haystack.
@@ -377,7 +377,7 @@ static int dvb_ca_en50221_link_init(struct dvb_ca_private *ca, int slot)
 	ret = dvb_ca_en50221_wait_if_status(ca, slot, STATUSREG_FR, HZ / 10);
 	if (ret)
 		return ret;
-	ret = dvb_ca_en50221_write_data(ca, slot, buf, 2);
+	ret = dvb_ca_en50221_write_data(ca, slot, buf, 2, CMDREG_SW);
 	if (ret != 2)
 		return -EIO;
 	ret = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN);
@@ -789,14 +789,14 @@ exit:
  * return: Number of bytes written, or < 0 on error.
  */
 static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
-				     u8 *buf, int bytes_write)
+				     u8 *buf, int bytes_write, u8 flags)
 {
 	struct dvb_ca_slot *sl = &ca->slot_info[slot];
 	int status;
 	int i;
 
 	dprintk("%s\n", __func__);
-
+	flags=0;
 	/* sanity check */
 	if (bytes_write > sl->link_buf_size)
 		return -EINVAL;
@@ -824,7 +824,7 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
 
 	/* OK, set HC bit */
 	status = ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND,
-					    IRQEN | CMDREG_HC);
+					    IRQEN | CMDREG_HC | flags);
 	if (status)
 		goto exit;
 
@@ -894,7 +894,7 @@ static int dvb_ca_en50221_write_data(struct dvb_ca_private *ca, int slot,
 		buf[0], (buf[1] & 0x80) == 0, bytes_write);
 
 exit:
-	ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN);
+	ca->pub->write_cam_control(ca->pub, slot, CTRLIF_COMMAND, IRQEN | flags);
 
 exitnowrite:
 	return status;
@@ -1529,7 +1529,7 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file,
 
 			mutex_lock(&sl->slot_lock);
 			status = dvb_ca_en50221_write_data(ca, slot, fragbuf,
-							   fraglen + 2);
+							   fraglen + 2, 0);
 			mutex_unlock(&sl->slot_lock);
 			if (status == (fraglen + 2)) {
 				written = 1;