add debug log when calling SetHvsSyncUpdate()

1 files changed, 1 insertions, 0 deletions

diff --git a/display.c b/display.c
index d44837e..a03fc00 100644
--- a/display.c
+++ b/display.c
@@ -111,6 +111,7 @@ int cRpiDisplay::SetVideoFormat(const cVideoFrameFormat *frameFormat)
 int cRpiDisplay::SetHvsSyncUpdate(cScanMode::eMode scanMode)
 {
 	char response[64];
+	DBG("SetHvsSyncUpdate(%s)", cScanMode::Str(scanMode));
 	return vc_gencmd(response, sizeof(response), "hvs_update_fields %d",
 			scanMode == cScanMode::eTopFieldFirst    ? 1 :
 			scanMode == cScanMode::eBottomFieldFirst ? 2 : 0);