From 02afc0d241dbd0efb985ba5a7ded9cea616ffcd7 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Wed, 8 May 2019 18:46:37 +1000
Subject: [PATCH] drivers/display/ssd1306.py: Change to use new i2c.writevto()
method.
Fixes issue #3482.
---
drivers/display/ssd1306.py | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/display/ssd1306.py b/drivers/display/ssd1306.py
index 178b4911d..f93a451e8 100644
--- a/drivers/display/ssd1306.py
+++ b/drivers/display/ssd1306.py
@@ -96,6 +96,7 @@ class SSD1306_I2C(SSD1306):
self.i2c = i2c
self.addr = addr
self.temp = bytearray(2)
+ self.write_list = [b'\x40', None] # Co=0, D/C#=1
super().__init__(width, height, external_vcc)
def write_cmd(self, cmd):
@@ -104,12 +105,8 @@ class SSD1306_I2C(SSD1306):
self.i2c.writeto(self.addr, self.temp)
def write_data(self, buf):
- self.temp[0] = self.addr << 1
- self.temp[1] = 0x40 # Co=0, D/C#=1
- self.i2c.start()
- self.i2c.write(self.temp)
- self.i2c.write(buf)
- self.i2c.stop()
+ self.write_list[1] = buf
+ self.i2c.writevto(self.addr, self.write_list)
class SSD1306_SPI(SSD1306):
--
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