From a6e3902eb0adf5d6043f23d863e4a25b3a400096 Mon Sep 17 00:00:00 2001
From: Kunal Powar <kunalpowar1203@gmail.com>
Date: Sat, 5 Apr 2014 01:28:15 +0530
Subject: [PATCH] gpio: fix a bug which prevented digital pins reads from
 working correctly

when reading from the value file, it is important to seek back to the front
so that we get the fresh values from the kernel driver for every new read
---
 digitalpin.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/digitalpin.go b/digitalpin.go
index 8fffe07..4843743 100644
--- a/digitalpin.go
+++ b/digitalpin.go
@@ -117,6 +117,7 @@ func (p *digitalPin) Read() (int, error) {
 	if _, err := p.val.Read(buf); err != nil {
 		return 0, err
 	}
+	p.val.Seek(0, 0)
 	var val int
 	if buf[0] == '1' {
 		val = 1