diff --git a/shared-bindings/is31fl3741/FrameBuffer.c b/shared-bindings/is31fl3741/FrameBuffer.c
index 1541cbe292..fe75f82c0e 100644
--- a/shared-bindings/is31fl3741/FrameBuffer.c
+++ b/shared-bindings/is31fl3741/FrameBuffer.c
@@ -40,7 +40,8 @@
 //| class IS31FL3741_FrameBuffer:
 //|     """Creates an in-memory framebuffer for a IS31FL3741 device."""
 //|
-//|     def __init__(self, *, width: int) -> None:
+//|     def __init__(self, is31: ~is31fl3741.IS31FL3741, width: int, height: int, mapping: Tuple[int, ...], *,
+//|         framebuffer: Optional[WriteableBuffer] = None, scale: bool = false, gamma: bool = false) -> None:
 //|         """Create a IS31FL3741_FrameBuffer object with the given attributes.
 //|
 //|         The framebuffer is in "RGB888" format using 4 bytes per pixel.
@@ -51,7 +52,16 @@
 //|         by passing the Is31fl3741 object to memoryview().
 //|
 //|         A Is31fl3741 is often used in conjunction with a
-//|         `framebufferio.FramebufferDisplay`."""
+//|         `framebufferio.FramebufferDisplay`.
+//|
+//|         :param ~is31fl3741.IS31FL3741 is31: base IS31FL3741 instance to drive the framebuffer
+//|         :param int width: width of the display
+//|         :param int height: height of the display
+//|         :param Tuple[int, ...] mapping: mapping of matrix locations to LEDs
+//|         :param Optional[WriteableBuffer] framebuffer: Optional buffer to hold the display
+//|         :param bool scale: if True display is scaled down by 3 when displayed
+//|         :param bool gamma: if True apply gamma correction to all LEDs"""
+//|         ...
 //|
 STATIC mp_obj_t is31fl3741_FrameBuffer_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
     enum { ARG_is31, ARG_width, ARG_height, ARG_framebuffer, ARG_mapping, ARG_scale, ARG_gamma };
diff --git a/shared-bindings/is31fl3741/IS31FL3741.c b/shared-bindings/is31fl3741/IS31FL3741.c
index 16d4624683..1ea5997393 100644
--- a/shared-bindings/is31fl3741/IS31FL3741.c
+++ b/shared-bindings/is31fl3741/IS31FL3741.c
@@ -37,11 +37,15 @@
 //| class IS31FL3741:
 //|     """Driver for an IS31FL3741 device."""
 //|
-//|     def __init__(self, *, width: int) -> None:
+//|     def __init__(self, i2c: busio.I2C, *, addr: int = 0x30) -> None:
 //|         """Create a IS31FL3741 object with the given attributes.
 //|
 //|         Designed to work low level or passed to and object such as
-//|         `is31fl3741.IS31FL3741_FrameBuffer`."""
+//|         :class:`~is31fl3741.IS31FL3741_FrameBuffer`.
+//|
+//|         :param ~busio.I2C i2c: I2C bus the IS31FL3741 is on
+//|         :param int addr: device address"""
+//|         ...
 //|
 STATIC mp_obj_t is31fl3741_IS31FL3741_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
     enum { ARG_i2c, ARG_addr };
@@ -115,7 +119,7 @@ STATIC mp_obj_t is31fl3741_IS31FL3741_set_global_current(mp_obj_t self_in, mp_ob
 MP_DEFINE_CONST_FUN_OBJ_2(is31fl3741_IS31FL3741_set_global_current_obj, is31fl3741_IS31FL3741_set_global_current);
 
 //| def set_led(self, led: int, value: int, page: int) -> None:
-//|     """Resets the IS31FL3741 chip."""
+//|     """Resets the IS31FL3741 chip.
 //|
 //|     :param int led: which LED to set
 //|     :param int value: value to set the LED to 0x00 to 0xFF