From 3c5d40916da7bd4988550abe55dcf3c21d206d12 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Fri, 19 Dec 2014 16:35:57 +0100
Subject: [PATCH] linuxdvb satconf: handle correctly LNB power off

---
 src/input/mpegts/linuxdvb/linuxdvb_lnb.c     | 11 ++++++++++-
 src/input/mpegts/linuxdvb/linuxdvb_satconf.c |  4 +++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/input/mpegts/linuxdvb/linuxdvb_lnb.c b/src/input/mpegts/linuxdvb/linuxdvb_lnb.c
index d6a63721..c91bdebc 100644
--- a/src/input/mpegts/linuxdvb/linuxdvb_lnb.c
+++ b/src/input/mpegts/linuxdvb/linuxdvb_lnb.c
@@ -169,7 +169,16 @@ linuxdvb_lnb_bandstack_tune
   ( linuxdvb_diseqc_t *ld, dvb_mux_t *lm, linuxdvb_satconf_ele_t *ls, int fd )
 {
   int pol = linuxdvb_lnb_bandstack_pol((linuxdvb_lnb_t*)ld, lm);
-  return linuxdvb_diseqc_set_volt(fd, pol);
+
+  /* en50494 does not use the voltage tune. this is happend in the switch */
+  if (ls->lse_en50494)
+    return 0;
+
+  if (ls->lse_parent->ls_diseqc_full || ls->lse_parent->ls_last_pol != pol + 1) {
+    ls->lse_parent->ls_last_pol = pol + 1;
+    return linuxdvb_diseqc_set_volt(fd, pol);
+  }
+  return 0;
 }
 
 /* **************************************************************************
diff --git a/src/input/mpegts/linuxdvb/linuxdvb_satconf.c b/src/input/mpegts/linuxdvb/linuxdvb_satconf.c
index 9a68b2cc..a785124b 100644
--- a/src/input/mpegts/linuxdvb/linuxdvb_satconf.c
+++ b/src/input/mpegts/linuxdvb/linuxdvb_satconf.c
@@ -656,9 +656,11 @@ linuxdvb_satconf_post_stop_mux
   ( linuxdvb_satconf_t *ls )
 {
   gtimer_disarm(&ls->ls_diseqc_timer);
-  if (ls->ls_frontend && ls->ls_lnb_poweroff)
+  if (ls->ls_frontend && ls->ls_lnb_poweroff) {
     linuxdvb_diseqc_set_volt(
         ((linuxdvb_frontend_t *)ls->ls_frontend)->lfe_fe_fd, -1);
+    linuxdvb_satconf_reset(ls);
+  }
 }
 
 int