diff --git a/pyhap/accessory_driver.py b/pyhap/accessory_driver.py
index 9a73f8ed..58b2e791 100644
--- a/pyhap/accessory_driver.py
+++ b/pyhap/accessory_driver.py
@@ -45,6 +45,7 @@
     PROP_PERMISSIONS,
     Characteristic,
     CharacteristicError,
+    CharacteristicWrite,
     HAPValue,
 )
 from pyhap.const import (
@@ -1239,7 +1240,7 @@ def _run_characteristic_writes(
         client_uuid: UUID | None,
         pending: list[_PendingWrite],
     ) -> tuple[dict[int, dict[int, dict[str, Any]]], list[_PendingWrite]]:
-        queries: list[dict[str, Any]] = chars_query[HAP_REPR_CHARS]
+        queries: list[CharacteristicWrite] = chars_query[HAP_REPR_CHARS]
 
         timed_write = HAP_REPR_PID in chars_query
         if timed_write and not self._take_prepared_write(
@@ -1593,7 +1594,7 @@ def signal_handler(self, _signal: Any, _frame: Any) -> None:
             raise
 
     def _notify(
-        self, queries: list[dict[str, Any]], client_addr: tuple[str, int]
+        self, queries: list[CharacteristicWrite], client_addr: tuple[str, int]
     ) -> set[tuple[int, int]]:
         """Notify the driver that the client has subscribed or unsubscribed.
 
diff --git a/pyhap/characteristic.py b/pyhap/characteristic.py
index 19a2730e..0e757c0f 100644
--- a/pyhap/characteristic.py
+++ b/pyhap/characteristic.py
@@ -7,7 +7,7 @@
 from collections.abc import Callable
 import inspect
 import logging
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING, Any, TypedDict
 from uuid import UUID
 
 from .const import (
@@ -50,6 +50,27 @@ def _setter_wants_client_addr(setter: Callable[..., Any]) -> bool:
 # A characteristic value as HAP JSON carries it.
 HAPValue = bool | int | float | str | None
 
+
+class _CharacteristicWriteTarget(TypedDict):
+    aid: int
+    iid: int
+
+
+class CharacteristicWrite(_CharacteristicWriteTarget, total=False):
+    """One characteristic of a write, as HAP JSON carries it.
+
+    ``value`` is the value to write, ``ev`` subscribes or unsubscribes and
+    ``r`` asks for a write response. ``authData`` and ``remote`` are part of
+    the HAP request too, the driver does not read them.
+    """
+
+    value: HAPValue
+    ev: bool
+    r: bool
+    authData: str
+    remote: bool
+
+
 HAP_FORMAT_BOOL = "bool"
 HAP_FORMAT_INT = "int"
 HAP_FORMAT_FLOAT = "float"