From 76635e90ec82368ca4b179daccda0753a14f0e3c Mon Sep 17 00:00:00 2001
From: Marc Meadows <marcm@meadowface.net>
Date: Sat, 14 May 2016 20:27:51 -0400
Subject: [PATCH] Fix incorrect handling of negative temperatures in
 ambient_weather.c (#376)

* Fix incorrect handling of negative temperatures in ambient_weather.c

As described in issue #375

* Use int instead of uint32_t as suggested by zuckschwerdt.
---
 src/devices/ambient_weather.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/devices/ambient_weather.c b/src/devices/ambient_weather.c
index c9f0db808..647d33556 100644
--- a/src/devices/ambient_weather.c
+++ b/src/devices/ambient_weather.c
@@ -5,13 +5,10 @@
 static float
 get_temperature (uint8_t * msg)
 {
-  uint32_t temp_f = msg[4] & 0x7f;
+  int temp_f = msg[4];
   temp_f <<= 4;
   temp_f |= ((msg[5] & 0xf0) >> 4);
   temp_f -= 400;
-  if (msg[4] & 0x80) {
-    temp_f = -temp_f;
-  }
   return (temp_f / 10.0f);
 }