From: Erik Andresen <erik@vontaene.de>
Date: Tue, 3 Jan 2017 19:03:59 +0000 (+0100)
Subject: i2c: reuse code from i2c_write_reg() for read
X-Git-Url: https://defiant.homedns.org/gitweb/?a=commitdiff_plain;h=c0beb2624233bf2737219cd8a222bece7a37dda7;p=pyshared.git

i2c: reuse code from i2c_write_reg() for read
---

diff --git a/i2c.py b/i2c.py
index 60d825d..bffa9fe 100755
--- a/i2c.py
+++ b/i2c.py
@@ -57,11 +57,8 @@ class i2c:
 			self.dev = None
 			i2c.__single = None
 
-	def __del__(self):
-		self.close()
 
-
-def i2c_write_reg(addr, reg, buf):
+def i2c_write_reg(addr, reg, buf=""):
 	dev = i2c(addr)
 	s = struct.pack(">B", reg) + buf
 	dev.write(s)
@@ -69,9 +66,9 @@ def i2c_write_reg(addr, reg, buf):
 
 
 def i2c_read_reg(addr, reg, num=1):
+	i2c_write_reg(addr, reg)
+
 	dev = i2c(addr)
-	s = struct.pack(">B", reg)
-	dev.write(s)
 	s = dev.read(num)
 	dev.close()
 	return s