From 8415d2594b5e644abd15f57ab5e2e4a95a3ce9cd Mon Sep 17 00:00:00 2001
From: Simon Albinsson <giunk@zxz.se>
Date: Sat, 7 Apr 2018 22:52:33 +0000
Subject: [PATCH] Short warning about the general call command

---
 sgp30/sgp30.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sgp30/sgp30.py b/sgp30/sgp30.py
index 1f6d4a8..04578e7 100644
--- a/sgp30/sgp30.py
+++ b/sgp30/sgp30.py
@@ -68,6 +68,15 @@ class Sgp30():
         sleep(15)
 
     def i2c_geral_call(bus):
+        """This attempts to reset _ALL_ devices on the i2c buss
+        
+        This command issues the i2c-general call RW command that should result
+        in all devices aborting any read/write operations and starting to listen
+        for new i2c-commands.
+
+        This will usually un-stick the SGP30, but might reset or otherwise
+        affect any device on the bus.
+        """
         bus.write_byte(0,0x06)
         sleep(.1)