ishwerdutt
diff --git a/‎pslab/bus/__init__.py
Lines changed: 4 additions & 1 deletion b/‎pslab/bus/__init__.py
Lines changed: 4 additions & 1 deletion
diff --git a/‎pslab/bus/busio.py
Lines changed: 2 additions & 2 deletions b/‎pslab/bus/busio.py
Lines changed: 2 additions & 2 deletions
diff --git a/‎pslab/bus/i2c.py
Lines changed: 3 additions & 3 deletions b/‎pslab/bus/i2c.py
Lines changed: 3 additions & 3 deletions
@@ -1,11 +1,14 @@
 """Contains modules for interfacing with the PSLab's I2C, SPI, and UART buses.
 
-(SPI and UART still TODO)
+(UART still TODO)
 """
 
 from pslab.bus.i2c import I2CMaster, I2CSlave
+from pslab.bus.spi import SPIMaster, SPISlave
 
 __all__ = (
     "I2CMaster",
     "I2CSlave",
+    "SPIMaster",
+    "SPISlave",
 )
@@ -30,15 +30,15 @@
 
 from typing import List, Union
 
-from pslab.bus.i2c import I2CPrimitive
+from pslab.bus.i2c import _I2CPrimitive
 from pslab.serial_handler import SerialHandler
 
 __all__ = "I2C"
 ReadableBuffer = Union[bytes, bytearray, memoryview]
 WriteableBuffer = Union[bytearray, memoryview]
 
 
-class I2C(I2CPrimitive):
+class I2C(_I2CPrimitive):
     """Busio I2C Class for CircuitPython Compatibility.
 
     Parameters
 
@@ -32,7 +32,7 @@
 logger = logging.getLogger(__name__)
 
 
-class I2CPrimitive:
+class _I2CPrimitive:
     """I2C primitive commands.
 
     Handles all the I2C subcommands coded in pslab-firmware.
@@ -429,7 +429,7 @@ def _read_bulk(
         return bytearray(data)
 
 
-class I2CMaster(I2CPrimitive):
+class I2CMaster(_I2CPrimitive):
     """I2C bus controller.
 
     Handles slave independent functionality with the I2C port.
@@ -480,7 +480,7 @@ def scan(self) -> List[int]:
         return addrs
 
 
-class I2CSlave(I2CPrimitive):
+class I2CSlave(_I2CPrimitive):
     """I2C slave device.
 
     Parameters