From 0c25e20721f123f1a7196e7d658b81359962cafd Mon Sep 17 00:00:00 2001
From: Adam Bright <brightam1@gmail.com>
Date: Mon, 26 Sep 2016 05:31:51 +0000
Subject: [PATCH] better negative rounding

---
 sensor/mcp9808/mcp9808.go | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sensor/mcp9808/mcp9808.go b/sensor/mcp9808/mcp9808.go
index 53b68a2..35dd149 100644
--- a/sensor/mcp9808/mcp9808.go
+++ b/sensor/mcp9808/mcp9808.go
@@ -322,11 +322,7 @@ func convertWordToTempC(temp uint16) float64 {
 }
 
 func (d *MCP9808) setTemp(reg byte, newTemp float64) error {
-	rounder := 2.0
-	if newTemp < 0 {
-		rounder = 0.0
-	}
-	return d.Bus.WriteWordToReg(address, reg, uint16(newTemp*16+rounder)&0x1ffc)
+	return d.Bus.WriteWordToReg(address, reg, uint16(newTemp*16+2)&0x1ffc)
 }
 
 // AmbientTemp reads the current sensor value along with the flags denoting what boundaries the