From 69dfee5f752b79451498c3bfc49aeb94f20ecc16 Mon Sep 17 00:00:00 2001
From: Karan Misra <kidoman@gmail.com>
Date: Thu, 15 Jan 2015 07:28:59 +0530
Subject: [PATCH] rpi: add link to revision number details

---
 host/rpi/rpi.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/host/rpi/rpi.go b/host/rpi/rpi.go
index 940a4c2..0a82a4b 100644
--- a/host/rpi/rpi.go
+++ b/host/rpi/rpi.go
@@ -74,6 +74,8 @@ var ledMap = embd.LEDMap{
 
 func init() {
 	embd.Register(embd.HostRPi, func(rev int) *embd.Descriptor {
+		// Refer to http://elinux.org/RPi_HardwareHistory#Board_Revision_History
+		// for details.
 		pins := rev3Pins
 		if rev < 16 {
 			pins = rev2Pins