From 595438785879552912a1a6832a4f2715f4e82272 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Wed, 16 Oct 2019 14:27:01 +1100
Subject: [PATCH] drivers/onewire/ds18x20.py: Add support for DS1822 sensor.

DS1822P sensors behave just like the DS18B20 except for the following:
- it has a different family code: 0x22
- it has only the GND and DQ pins connected, it uses parasitic power from
  the data line

Contributed by @nebelgrau77.
---
 drivers/onewire/ds18x20.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/onewire/ds18x20.py b/drivers/onewire/ds18x20.py
index bf06094835..272642239e 100644
--- a/drivers/onewire/ds18x20.py
+++ b/drivers/onewire/ds18x20.py
@@ -13,7 +13,7 @@ class DS18X20:
         self.buf = bytearray(9)
 
     def scan(self):
-        return [rom for rom in self.ow.scan() if rom[0] == 0x10 or rom[0] == 0x28]
+        return [rom for rom in self.ow.scan() if rom[0] in (0x10, 0x22, 0x28)]
 
     def convert_temp(self):
         self.ow.reset(True)