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Add definition of Client Characteristic Configuration bit

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This commit is contained in:
Alan Rosenthal
2022-11-07 19:43:22 -05:00
parent 2920c3b0d1
commit d4228e3b5b
2 changed files with 15 additions and 4 deletions
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10
bumble/gatt.py
View File

@@ -23,6 +23,7 @@
# Imports # Imports
# ----------------------------------------------------------------------------- # -----------------------------------------------------------------------------
import asyncio import asyncio
import enum
import types import types
import logging import logging
from colors import color from colors import color
@@ -473,3 +474,12 @@ class Descriptor(Attribute):
def __str__(self): def __str__(self):
return f'Descriptor(handle=0x{self.handle:04X}, type={self.type}, value={self.read_value(None).hex()})' return f'Descriptor(handle=0x{self.handle:04X}, type={self.type}, value={self.read_value(None).hex()})'
class ClientCharacteristicConfigurationBits(enum.IntFlag):
'''
See Vol 3, Part G - 3.3.3.3 - Table 3.11 Client Characteristic Configuration bit field definition
'''
DEFAULT = 0x0000
NOTIFICATION = 0x0001
INDICATION = 0x0002

9
bumble/gatt_client.py
View File

@@ -37,7 +37,8 @@ from .gatt import (
GATT_PRIMARY_SERVICE_ATTRIBUTE_TYPE, GATT_PRIMARY_SERVICE_ATTRIBUTE_TYPE,
GATT_SECONDARY_SERVICE_ATTRIBUTE_TYPE, GATT_SECONDARY_SERVICE_ATTRIBUTE_TYPE,
GATT_CHARACTERISTIC_ATTRIBUTE_TYPE, GATT_CHARACTERISTIC_ATTRIBUTE_TYPE,
Characteristic Characteristic,
ClientCharacteristicConfigurationBits
) )
# ----------------------------------------------------------------------------- # -----------------------------------------------------------------------------
@@ -558,13 +559,13 @@ class Client:
return return
# Set the subscription bits and select the subscriber set # Set the subscription bits and select the subscriber set
bits = 0 bits = ClientCharacteristicConfigurationBits.DEFAULT
subscriber_sets = [] subscriber_sets = []
if characteristic.properties & Characteristic.NOTIFY: if characteristic.properties & Characteristic.NOTIFY:
bits |= 0x0001 bits |= ClientCharacteristicConfigurationBits.NOTIFICATION
subscriber_sets.append(self.notification_subscribers.setdefault(characteristic.handle, set())) subscriber_sets.append(self.notification_subscribers.setdefault(characteristic.handle, set()))
if characteristic.properties & Characteristic.INDICATE: if characteristic.properties & Characteristic.INDICATE:
bits |= 0x0002 bits |= ClientCharacteristicConfigurationBits.INDICATION
subscriber_sets.append(self.indication_subscribers.setdefault(characteristic.handle, set())) subscriber_sets.append(self.indication_subscribers.setdefault(characteristic.handle, set()))
# Add subscribers to the sets # Add subscribers to the sets