--- a/drivers/media/video/cx23885/cx23885-cards.c	2009-08-19 14:11:49.000000000 +0300
+++ a/drivers/media/video/cx23885/cx23885-cards.c	2009-08-19 14:30:10.000000000 +0300
@@ -704,7 +704,14 @@ void cx23885_gpio_setup(struct cx23885_d
 	case CX23885_BOARD_TEVII_S470:
 		cx_write(MC417_CTL, 0x00000036);
 		cx_write(MC417_OEN, 0x00001000);
-		cx_write(MC417_RWD, 0x00001800);
+
+		cx_set(MC417_RWD, 0x00000002);
+		mdelay(200);
+
+		cx_clear(MC417_RWD, 0x00000800);
+		mdelay(200);
+		cx_set(MC417_RWD, 0x00000800);
+		mdelay(200);
 		break;
 	case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
 		/* GPIO-0 INTA from CiMax1
@@ -880,7 +887,7 @@ void cx23885_card_setup(struct cx23885_d
 	case CX23885_BOARD_TEVII_S470:
 	case CX23885_BOARD_TBS_6920:
 	case CX23885_BOARD_DVBWORLD_2005:
-		ts1->gen_ctrl_val  = 0x5; /* Parallel */
+		ts1->gen_ctrl_val  = 0x4; /* Parallel */
 		ts1->ts_clk_en_val = 0x1; /* Enable TS_CLK */
 		ts1->src_sel_val   = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO;
 		break;
--- a/drivers/media/video/cx23885/cx23885-dvb.c	2009-08-19 14:11:49.000000000 +0300
+++ a/drivers/media/video/cx23885/cx23885-dvb.c	2009-08-19 15:25:57.000000000 +0300
@@ -55,6 +55,7 @@
 #include "netup-eeprom.h"
 #include "netup-init.h"
 #include "lgdt3305.h"
+#include "tbs_lnb_pwr.h"
 
 static unsigned int debug;
 
@@ -71,6 +72,10 @@ MODULE_PARM_DESC(alt_tuner, "Enable alte
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
+static unsigned int lnb_pwr_ctrl;
+module_param(lnb_pwr_ctrl, int, 0644);
+MODULE_PARM_DESC(lnb_pwr_ctrl,"set LNB power control 0=default type, 1=another type");
+
 /* ------------------------------------------------------------------ */
 
 static int dvb_buf_setup(struct videobuf_queue *q,
@@ -419,22 +424,31 @@ static struct stv6110_config netup_stv61
 	.clk_div = 1,
 };
 
-static int tbs_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
+static int tbs6920_set_voltage(struct dvb_frontend *fe,
+				fe_sec_voltage_t voltage)
 {
 	struct cx23885_tsport *port = fe->dvb->priv;
 	struct cx23885_dev *dev = port->dev;
 
-	if (voltage == SEC_VOLTAGE_18)
-		cx_write(MC417_RWD, 0x00001e00);/* GPIO-13 high */
-	else if (voltage == SEC_VOLTAGE_13)
-		cx_write(MC417_RWD, 0x00001a00);/* GPIO-13 low */
-	else
-		cx_write(MC417_RWD, 0x00001800);/* GPIO-12 low */
+	switch (voltage) {
+	case SEC_VOLTAGE_13:
+		cx_set(MC417_RWD, 0x00000200);
+		cx_clear(MC417_RWD, 0x00000400);
+		break;
+	case SEC_VOLTAGE_18:
+		cx_set(MC417_RWD, 0x00000200);
+		cx_set(MC417_RWD, 0x00000400);
+		break;
+	case SEC_VOLTAGE_OFF:
+		cx_clear(MC417_RWD, 0x00000200);
+		break;
+	}
+
 	return 0;
 }
 
 static struct cx24116_config tbs_cx24116_config = {
-	.demod_address = 0x05,
+	.demod_address = 0x55,
 };
 
 static struct cx24116_config tevii_cx24116_config = {
@@ -768,14 +782,18 @@ static int dvb_register(struct cx23885_t
 		}
 		break;
 	case CX23885_BOARD_TBS_6920:
-		i2c_bus = &dev->i2c_bus[0];
+		i2c_bus = &dev->i2c_bus[1];
 
 		fe0->dvb.frontend = dvb_attach(cx24116_attach,
 			&tbs_cx24116_config,
 			&i2c_bus->i2c_adap);
-		if (fe0->dvb.frontend != NULL)
-			fe0->dvb.frontend->ops.set_voltage = tbs_set_voltage;
-
+		if (fe0->dvb.frontend != NULL) {
+			if (!lnb_pwr_ctrl)
+				fe0->dvb.frontend->ops.set_voltage = tbs6920_set_voltage;
+			else 
+				fe0->dvb.frontend->ops.set_voltage = tbs_set_voltage;
+		}
+				
 		break;
 	case CX23885_BOARD_TEVII_S470:
 		i2c_bus = &dev->i2c_bus[1];
@@ -784,7 +802,7 @@ static int dvb_register(struct cx23885_t
 			&tevii_cx24116_config,
 			&i2c_bus->i2c_adap);
 		if (fe0->dvb.frontend != NULL)
-			fe0->dvb.frontend->ops.set_voltage = tbs_set_voltage;
+			fe0->dvb.frontend->ops.set_voltage = tbs6920_set_voltage;
 
 		break;
 	case CX23885_BOARD_DVBWORLD_2005:
--- a/drivers/media/video/cx23885/Makefile	2009-08-19 14:11:49.000000000 +0300
+++ a/drivers/media/video/cx23885/Makefile	2009-08-19 14:30:10.000000000 +0300
@@ -1,6 +1,6 @@
 cx23885-objs	:= cx23885-cards.o cx23885-video.o cx23885-vbi.o \
 		    cx23885-core.o cx23885-i2c.o cx23885-dvb.o cx23885-417.o \
-		    netup-init.o cimax2.o netup-eeprom.o
+		    netup-init.o cimax2.o netup-eeprom.o tbs_lnb_pwr.o
 
 obj-$(CONFIG_VIDEO_CX23885) += cx23885.o
 
--- a/drivers/media/video/cx23885/tbs_lnb_pwr.c	2009-08-19 15:54:46.000000000 +0300
+++ a/drivers/media/video/cx23885/tbs_lnb_pwr.c	2009-08-19 14:30:10.000000000 +0300
@@ -0,0 +1,353 @@
+/*
+    LNB Power Control for TurboSight DVB-S/S2 PCI-Express cards
+    Copyright (C) 2009 Bob Liu <bob@turbosight.com>
+
+    Copyright (C) 2009 TurboSight.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "cx23885.h"
+
+/*
+    Direction bits are at offset 23:16
+    This will create a mask value that needs to be ored with the old
+    value to set the relevant bit.
+*/
+#define Set_GPIO_Direction_Bit_To_OUTPUT(Bit)   ((1 << Bit) << 16)
+
+/*
+    This will create a mask value that needs to be anded with the old
+    value to clear the relevant bit.
+*/
+#define Set_GPIO_Direction_Bit_To_INPUT(Bit)    (~((1 << Bit) << 16))
+
+/*
+    This will create a mask value that needs to be ored with the old
+    value to set the relevant bit.
+*/
+#define Set_GPIO_Bit(Bit)                       (1 << Bit)
+
+/*
+    This will create a mask value that needs to be anded with the old
+    value to clear the relevant bit.
+*/
+#define Clear_GPIO_Bit(Bit)                     (~(1 << Bit))
+
+void SetGpioPinDirection(struct dvb_frontend *fe, int pinNumber, int pinLogicValue)
+{
+	u32 gpioRegister, value = 0;
+	struct cx23885_tsport *port = fe->dvb->priv;
+	struct cx23885_dev *dev = port->dev;
+
+	gpioRegister = cx_read(GP0_IO);
+
+	if (pinLogicValue == 0) {
+		value = gpioRegister & Set_GPIO_Direction_Bit_To_INPUT(pinNumber) ;
+	} else {
+		value = gpioRegister | Set_GPIO_Direction_Bit_To_OUTPUT(pinNumber) ;
+	}
+
+	cx_write(GP0_IO, value);
+}
+
+void SetGpioPinLogicValue(struct dvb_frontend *fe, int pinNumber, int pinLogicValue)
+{
+	u32 gpioRegister, value = 0;
+	struct cx23885_tsport *port = fe->dvb->priv;
+	struct cx23885_dev *dev = port->dev;
+
+	gpioRegister = cx_read(GP0_IO);
+	/* first do a sanity check - if the Pin is not output, make it output */
+	if ((gpioRegister & Set_GPIO_Direction_Bit_To_OUTPUT(pinNumber)) == 0x00) {
+		/* it's input */
+		value = gpioRegister | Set_GPIO_Direction_Bit_To_OUTPUT(pinNumber) ;
+		cx_write(GP0_IO, value);
+		value = 0;
+		/* read the value back */
+		gpioRegister = cx_read(GP0_IO);
+	}
+
+	if (pinLogicValue == 0) {
+		value = gpioRegister & Clear_GPIO_Bit(pinNumber);
+	} else {
+		value = gpioRegister | Set_GPIO_Bit(pinNumber);
+	}
+
+	cx_write(GP0_IO, value);
+}
+
+u32 GetGpioPinValue(struct dvb_frontend *fe, int pinNumber)
+{
+	u32 gpioRegister, value = 0;
+	struct cx23885_tsport *port = fe->dvb->priv;
+	struct cx23885_dev *dev = port->dev;
+
+	gpioRegister = cx_read(GP0_IO);
+
+	value = ((gpioRegister >> pinNumber) >> 8) & 1;
+
+	return value;
+}
+
+void Set_IC_CLK(struct dvb_frontend *fe, unsigned char HL_Level)
+{
+	if (HL_Level == 1) {
+		SetGpioPinDirection(fe, 2, 1);
+		SetGpioPinLogicValue(fe, 2, 1);
+	} else {
+		SetGpioPinDirection(fe, 2, 1);
+		SetGpioPinLogicValue(fe, 2, 0);
+	}
+
+	return;
+}
+
+void Set_IC_IO(struct dvb_frontend *fe, unsigned char HL_Level)
+{
+	if (HL_Level == 1) {
+		SetGpioPinDirection(fe, 0, 1);
+		SetGpioPinLogicValue(fe, 0, 1);
+	} else {
+		SetGpioPinDirection(fe, 0, 1);
+		SetGpioPinLogicValue(fe, 0, 0);
+	}
+
+	return;
+}
+
+int Get_IC_IO(struct dvb_frontend *fe)
+{
+	int HL_Level;
+
+	SetGpioPinDirection(fe, 0, 0);
+	HL_Level = GetGpioPinValue(fe, 0);
+	return HL_Level;
+}
+
+void Set_IC_RST(struct dvb_frontend *fe, unsigned char HL_Level)
+{
+	if (HL_Level == 1) {
+		SetGpioPinDirection(fe, 1, 1);
+		SetGpioPinLogicValue(fe, 1, 1);
+	} else {
+		SetGpioPinDirection(fe, 1, 1);
+		SetGpioPinLogicValue(fe, 1, 0);
+	}
+
+	return;
+}
+
+static unsigned char Get_IC_BUSY(struct dvb_frontend *fe)
+{
+	unsigned char HL_Level;
+
+	SetGpioPinDirection(fe, 3, 0);
+	HL_Level = (unsigned char)GetGpioPinValue(fe, 3);
+
+	return HL_Level;
+}
+
+static void Delay1mS(void)
+{
+	udelay(800);
+}
+
+static void Clk_Delay(void)
+{
+	udelay(30);
+}
+
+static void SetMCU_CLk(struct dvb_frontend *fe, unsigned char HL_level)
+{
+	if (HL_level != 0)
+		HL_level = 1;
+
+	Set_IC_CLK(fe, HL_level);
+
+	Clk_Delay();
+
+	return;
+}
+
+static void SetMCU_Data(struct dvb_frontend *fe, unsigned char HL_level)
+{
+	if (HL_level != 0)
+		HL_level = 1;
+
+	Set_IC_IO(fe, HL_level);
+
+	return;
+}
+
+static void SetMCU_Cs(struct dvb_frontend *fe, unsigned char HL_level)
+{
+	if (HL_level != 0)
+		HL_level = 1;
+
+	Set_IC_RST(fe, HL_level);
+
+	return;
+}
+
+static unsigned char GetMCU_Data(struct dvb_frontend *fe)
+{
+	unsigned char linedata;
+
+	linedata = (unsigned char)Get_IC_IO(fe);
+
+	if (linedata != 0)
+		return 1;
+	else
+		return 0;
+}
+
+static unsigned char GetMCU_Busy(struct dvb_frontend *fe)
+{
+	unsigned char LineBusy;
+
+	LineBusy = Get_IC_BUSY(fe);
+
+	if (LineBusy != 0)
+		return 1;
+	else
+		return 0;
+}
+
+static void SendOneByteData(struct dvb_frontend *fe, unsigned char OneByteData)
+{
+	unsigned char i;
+
+	for (i = 0;i < 8;i++) {
+		SetMCU_CLk(fe, 0);
+		SetMCU_Data(fe, OneByteData & 0x80);
+		OneByteData *= 2;
+		SetMCU_CLk(fe, 1);
+	}
+	return;
+}
+
+static unsigned char GetOneByteData(struct dvb_frontend *fe)
+{
+	unsigned char i, OneByteData = 0;
+
+
+	for (i = 0;i < 8;i++) {
+		SetMCU_CLk(fe, 0);
+		OneByteData *= 2;
+		SetMCU_CLk(fe, 1);
+		OneByteData += GetMCU_Data(fe);
+	}
+
+	return OneByteData;
+}
+
+static unsigned char QuestionAndAnswer(struct dvb_frontend *fe, unsigned char *QuestionBuffer)
+{
+	unsigned char i, temp, result;
+
+	temp = QuestionBuffer[0];
+	for (i = 0;i < QuestionBuffer[0]; i++)
+		temp += QuestionBuffer[i+1];
+	temp = (~temp + 1);
+	QuestionBuffer[1+ QuestionBuffer[0]] = temp;
+
+	SetMCU_Cs(fe, 1);
+	SetMCU_CLk(fe, 1);
+	SetMCU_Data(fe, 1);
+	Delay1mS();
+
+	SetMCU_Cs(fe, 0);
+	Delay1mS();
+	SendOneByteData(fe, 0xe0);
+	Delay1mS();
+	temp = QuestionBuffer[0];
+	temp += 2;
+	for (i = 0;i < temp;i++)
+		SendOneByteData(fe, QuestionBuffer[i]);
+	SetMCU_Cs(fe, 1);
+	SetMCU_Data(fe, 1);
+
+	temp = 0;
+	for (i = 0;((i < 8)&(temp == 0));i++) {
+		Delay1mS();
+		if (GetMCU_Busy(fe) == 0)
+			temp = 1;
+	}
+	if (i > 7) {
+		result = 0;
+	} else {
+		SetMCU_Cs(fe, 0);
+		Delay1mS();
+		SendOneByteData(fe, 0xe1);
+		Delay1mS();
+		temp = GetOneByteData(fe);
+		if (temp > 14)
+			temp = 14;
+		QuestionBuffer[0] = temp;
+		for (i = 0;i < (temp + 1);i++)
+			QuestionBuffer[i+1] = GetOneByteData(fe);
+		SetMCU_Cs(fe, 1);
+		SetMCU_Data(fe, 1);
+
+		temp = 0;
+		for (i = 0;i < (QuestionBuffer[0] + 2);i++)
+			temp += QuestionBuffer[i];
+		if (temp == 0) {
+			result = 1;
+		} else {
+			result = 0;
+		}
+	}
+
+	return result;
+}
+
+int tbs_set_voltage(struct dvb_frontend *fe,
+			fe_sec_voltage_t voltage)
+{
+	unsigned char QuestionBuffer[16];
+
+	switch (voltage) {
+	case SEC_VOLTAGE_13:
+		QuestionBuffer[0] = 0x05;
+		QuestionBuffer[1] = 0x38;
+		QuestionBuffer[2] = 0x01;
+		QuestionBuffer[3] = 0x01;
+		QuestionBuffer[4] = 0x02;
+		QuestionBuffer[5] = 0x00;
+		break;
+	case SEC_VOLTAGE_18:
+		QuestionBuffer[0] = 0x05;
+		QuestionBuffer[1] = 0x38;
+		QuestionBuffer[2] = 0x01;
+		QuestionBuffer[3] = 0x01;
+		QuestionBuffer[4] = 0x02;
+		QuestionBuffer[5] = 0x01;
+		break;
+	case SEC_VOLTAGE_OFF:
+		QuestionBuffer[0] = 0x05;
+		QuestionBuffer[1] = 0x38;
+		QuestionBuffer[2] = 0x01;
+		QuestionBuffer[3] = 0x00;
+		QuestionBuffer[4] = 0x00;
+		QuestionBuffer[5] = 0x00;
+		break;
+	}
+
+	QuestionAndAnswer(fe, QuestionBuffer);
+
+	return 0;
+}
--- a/drivers/media/video/cx23885/tbs_lnb_pwr.h	2009-08-19 15:54:48.000000000 +0300
+++ a/drivers/media/video/cx23885/tbs_lnb_pwr.h	2009-08-19 14:30:10.000000000 +0300
@@ -0,0 +1,28 @@
+/*
+    LNB Power Control for TurboSight DVB-S/S2 PCI-Express cards
+    Copyright (C) 2009 Bob Liu <bob@turbosight.com>
+
+    Copyright (C) 2009 TurboSight.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef TBS_LNB_PWR_H
+#define TBS_LNB_PWR_H
+
+extern int tbs_set_voltage(struct dvb_frontend *fe,
+				fe_sec_voltage_t voltage);
+
+#endif
