add gain control

ddbridge/ddbridge-mod.c

@@ -1521,6 +1521,9 @@ static int mod_prop_proc(struct ddb_mod *mod, struct dtv_property *tvp)
 	case MODULATOR_INPUT_BITRATE:
 		return mod_set_ibitrate(mod, tvp->u.data);
 
+	case MODULATOR_GAIN:
+		return mod_set_vga(mod->port->dev, tvp->u.data);
+
 	}
 	return 0;
 }

include/linux/dvb/mod.h

@@ -29,6 +29,7 @@ struct dvb_mod_channel_params {
 #define MODULATOR_ATTENUATOR     32  
 #define MODULATOR_INPUT_BITRATE  33  /* Hz */
 #define MODULATOR_PCR_MODE       34  /* 1=pcr correction enabled */
+#define MODULATOR_GAIN           35
 #define MODULATOR_OUTPUT_ARI     64
 
 #endif /*_UAPI_DVBMOD_H_*/