drivers: Standardize class inheritance to class Foo(object).

README.md

@@ -459,12 +459,19 @@ lib/<component>/
 
 ### Coding conventions
 
-- **Constants**: use `from micropython import const` in `const.py` files.
+- **Constants**: use `from micropython import const` wrapper in `const.py` files.
 - **Naming**: `snake_case` for new methods. Legacy `camelCase` is acceptable for I2C helpers to stay consistent with existing drivers.
 - **Class inheritance**: `class Foo(object):` is the existing convention.
-- **Time**: use `from time import sleep_ms` (not `utime`).
+- **Time**: use `from time import sleep_ms` (not `utime`, not `sleep()` with float seconds).
+- **Exceptions**: use `except Exception:` instead of bare `except:`.
 - **No debug `print()`** in production driver code.
 
+### Driver API conventions
+
+- **Constructor signature**: `def __init__(self, i2c, ..., address=DEFAULT_ADDR)` — first parameter is always `i2c` (not `bus`), address uses keyword argument with a default from `const.py`.
+- **Attributes**: `self.i2c` for the I2C bus, `self.address` for the device address (not `self.bus`, `self.addr`).
+- **I2C helpers**: use private snake_case methods `_read_reg()`, `_write_reg()` for register access. Legacy names (`setReg`, `getReg`, `i2cReadBytes`, etc.) are acceptable in existing drivers but new drivers must use the standard naming.
+
 ### Linting
 
 The project uses [ruff](https://docs.astral.sh/ruff/) (config in `pyproject.toml`).

lib/apds9960/apds9960/device.py

@@ -4,7 +4,7 @@
 from time import sleep
 
 
-class APDS9960:
+class APDS9960(object):
     class GestureData:
         def __init__(self):
             self.u_data = [0] * 32

lib/bq27441/bq27441/device.py

@@ -9,7 +9,7 @@
 
 # Parameters for the current() function, to specify which current to read
 # current_measure types
-class CurrentMeasureType:
+class CurrentMeasureType(object):
     AVG = 0  # Average Current (DEFAULT)
     STBY = 1  # Standby Current
     MAX = 2  # Max Current
@@ -19,7 +19,7 @@ def __init__(self, value):
 
 
 # Parameters for the capacity() function, to specify which capacity to read
-class CapacityMeasureType:
+class CapacityMeasureType(object):
     REMAIN = 0  # Remaining Capacity (DEFAULT)
     FULL = 1  # Full Capacity
     AVAIL = 2  # Available Capacity
@@ -35,7 +35,7 @@ def __init__(self, value):
 
 
 # Parameters for the soc() function
-class SocMeasureType:
+class SocMeasureType(object):
     FILTERED = 0  # State of Charge Filtered (DEFAULT)
     UNFILTERED = 1  # State of Charge Unfiltered
 
@@ -44,7 +44,7 @@ def __init__(self, value):
 
 
 # Parameters for the soh() function
-class SohMeasureType:
+class SohMeasureType(object):
     PERCENT = 0  # State of Health Percentage (DEFAULT)
     SOH_STAT = 1  # State of Health Status Bits
 
@@ -53,7 +53,7 @@ def __init__(self, value):
 
 
 # Parameters for the temperature() function
-class TempMeasureType:
+class TempMeasureType(object):
     BATTERY = 0  # Battery Temperature (DEFAULT)
     INTERNAL_TEMP = 1  # Internal IC Temperature
 
@@ -62,15 +62,15 @@ def __init__(self, value):
 
 
 # Parameters for the setGPOUTFunction() funciton
-class GpoutFunctionType:
+class GpoutFunctionType(object):
     SOC_INT = 0  # Set GPOUT to SOC_INT functionality
     BAT_LOW = 1  # Set GPOUT to BAT_LOW functionality
 
     def __init__(self, value):
         self.value = value
 
 
-class BQ27441:
+class BQ27441(object):
     """BQ27441 class contains all major and minor functions use to read and control
     the fuel gauge ic"""
 

lib/ssd1327/ssd1327/device.py

@@ -4,7 +4,7 @@
 import framebuf
 
 
-class SSD1327:
+class SSD1327(object):
     def __init__(self, width=128, height=128):
         self.width = width
         self.height = height

lib/vl53l1x/vl53l1x/device.py

@@ -97,7 +97,7 @@
 )
 
 
-class VL53L1X:
+class VL53L1X(object):
     def __init__(self, i2c, address=0x29):
         self.i2c = i2c
         self.address = address

lib/wsen-hids/wsen_hids/device.py

@@ -9,7 +9,7 @@
 )
 
 
-class WSEN_HIDS:
+class WSEN_HIDS(object):
     """
     MicroPython driver for the WSEN-HIDS 2525020210001.
 

lib/wsen-pads/wsen_pads/device.py

@@ -4,7 +4,7 @@
 from wsen_pads.exceptions import *
 
 
-class WSEN_PADS:
+class WSEN_PADS(object):
     """
     MicroPython driver for the Würth Elektronik WSEN-PADS pressure sensor.