From 21e5566f79ad82cb018fbde2f765530b85420302 Mon Sep 17 00:00:00 2001
From: "Gary E. Miller" <gem@rellim.com>
Date: Wed, 13 Mar 2019 15:18:00 -0700
Subject: driver_nmea0183 and more: Decode $PSRFEPE, and epd.

Turns out epd also came from SiRF, but never made it to TPV.
Regressions changed to show new epd data.
---
 libgpsd_core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libgpsd_core.c')

diff --git a/libgpsd_core.c b/libgpsd_core.c
index 59bd622e..a98f5073 100644
--- a/libgpsd_core.c
+++ b/libgpsd_core.c
@@ -1050,7 +1050,9 @@ static void gpsd_error_model(struct gps_device_t *session)
 	    }
         }
 
-	if (0 < deltatime && MODE_2D <= fix->mode) {
+	if (0 == isfinite(fix->epd) &&
+	    0 < deltatime &&
+            MODE_2D <= fix->mode) {
 	    /*
 	     * We compute a track error estimate solely from the
 	     * position of this fix and the last one.  The maximum
-- 
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