Merge pull request #758 from how2flow/amlogic

[Adafruit_Blinka-hackapet.git] / src / adafruit_blinka / microcontroller / generic_linux / i2c.py

diff --git a/src/adafruit_blinka/microcontroller/generic_linux/i2c.py b/src/adafruit_blinka/microcontroller/generic_linux/i2c.py
index bb912a5b80210b72dc626663ff124dc24832d74b..b6f2fa36885c46a6f53c3aaceff0af42f0b7833d 100644 (file)
--- a/src/adafruit_blinka/microcontroller/generic_linux/i2c.py
+++ b/src/adafruit_blinka/microcontroller/generic_linux/i2c.py
@@ -1,9 +1,18 @@
+# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT

 """Generic Linux I2C class using PureIO's smbus class"""
 """Generic Linux I2C class using PureIO's smbus class"""

-import Adafruit_PureIO.smbus as smbus
+
+import warnings
+from Adafruit_PureIO import smbus

 
 
 class I2C:
 
 
 class I2C:

-    """I2C class"""
+    """
+    I2C class
+
+    Baudrate has no effect on Linux systems. The argument is only there for compatibility.
+    """

 
     MASTER = 0
     SLAVE = 1
 
     MASTER = 0
     SLAVE = 1


@@ -17,8 +26,10 @@ class I2C:
             raise NotImplementedError("Only I2C Master supported!")
         _mode = self.MASTER
 
             raise NotImplementedError("Only I2C Master supported!")
         _mode = self.MASTER
 

-        # if baudrate != None:
-        #    print("I2C frequency is not settable in python, ignoring!")
+        if baudrate is not None:
+            warnings.warn(
+                "I2C frequency is not settable in python, ignoring!", RuntimeWarning
+            )

 
         try:
             self._i2c_bus = smbus.SMBus(bus_num)
 
         try:
             self._i2c_bus = smbus.SMBus(bus_num)