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[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 f6bee20c8f878ab18fbbb08fb620594556dc2cd5..b6f2fa36885c46a6f53c3aaceff0af42f0b7833d 100644 (file)
--- a/src/adafruit_blinka/microcontroller/generic_linux/i2c.py
+++ b/src/adafruit_blinka/microcontroller/generic_linux/i2c.py
@@ -2,11 +2,17 @@
 #
 # SPDX-License-Identifier: MIT
 """Generic Linux I2C class using PureIO's smbus class"""
 #
 # SPDX-License-Identifier: MIT
 """Generic Linux I2C class using PureIO's smbus class"""

+
+import warnings

 from Adafruit_PureIO import smbus
 
 
 class I2C:
 from Adafruit_PureIO import smbus
 
 
 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


@@ -20,8 +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)