Add clock frequency parameter in SMBus class

Author: electronicayciencia

EasyMCP2221/smbus.py

@@ -16,11 +16,13 @@ class SMBus(object):
     :type force: boolean
     :param VID: Vendor Id (default to ``0x04D8``)
     :param PID: Product Id (default to ``0x00DD``)
+    :param clock: I2C clock frequency (default to ``100kHz``)
     """
 
-    def __init__(self, bus=None, force=False, VID=0x04D8, PID=0x00DD, devnum=0):
+    def __init__(self, bus=None, force=False, VID=0x04D8, PID=0x00DD, devnum=0, clock=100_000):
 
         self.mcp = EasyMCP2221.Device(VID, PID, devnum)
+        self.mcp.I2C_speed(clock)
 
 
     def _read_register(self, addr, register, length = 1, reg_bytes = 1, reg_byteorder = 'big'):

docs/source/history.rst

@@ -12,10 +12,12 @@ V1.7.1
 
 I2C:
     * Set I2C default speed to 100kHz. In some chips, the default speed is 500kHz and can cause trouble with some slave devices or noisy buses. You can adjust it with :func:`I2C_speed` function.
+    * Add clock frequency parameter in SMBus class.
 
 Misc:
     * Added function :func:`revision` to get the mayor and minor hardware and firmware revision.
     * Fixed test about Interrupt On Change.
+    * Moved GUI to a separate application on its own repository.
 
 
 V1.7.0