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-rw-r--r--drivers/media/dvb/dvb-usb/dib0700_devices.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/media/dvb/dvb-usb/dib0700_devices.c b/drivers/media/dvb/dvb-usb/dib0700_devices.c
index a3991799738..e9a2177bd16 100644
--- a/drivers/media/dvb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/dvb/dvb-usb/dib0700_devices.c
@@ -11,6 +11,11 @@
#include "dib3000mc.h"
#include "mt2060.h"
+static int force_lna_activation;
+module_param(force_lna_activation, int, 0644);
+MODULE_PARM_DESC(force_lna_activation, "force the activation of Low-Noise-Amplifyer(s) (LNA), "
+ "if applicable for the device (default: 0=automatic/off).");
+
/* Hauppauge Nova-T 500
* has a LNA on GPIO0 which is enabled by setting 1 */
static struct mt2060_config bristol_mt2060_config[2] = {
@@ -66,7 +71,10 @@ static int bristol_frontend_attach(struct dvb_usb_adapter *adap)
dib0700_set_gpio(adap->dev, GPIO10, GPIO_OUT, 0); msleep(10);
dib0700_set_gpio(adap->dev, GPIO10, GPIO_OUT, 1); msleep(10);
- dib0700_set_gpio(adap->dev, GPIO0, GPIO_OUT, 1); msleep(10); // LNA
+ if (force_lna_activation)
+ dib0700_set_gpio(adap->dev, GPIO0, GPIO_OUT, 1);
+ else
+ dib0700_set_gpio(adap->dev, GPIO0, GPIO_OUT, 0);
if (dib3000mc_i2c_enumeration(&adap->dev->i2c_adap, 2, DEFAULT_DIB3000P_I2C_ADDRESS, bristol_dib3000mc_config) != 0) {
dib0700_set_gpio(adap->dev, GPIO6, GPIO_OUT, 0); msleep(10);