shared/gatt-client: Implement bt_gatt_client_register_notify. This patch introduces the bt_gatt_client_register_notify and bt_gatt_client_unregister_notify functions and implements the latter. The bt_gatt_client_register_notify function does the following: - If the given characteristic has a CCC descriptor, it writes to it based on which notify/indicate properties are present in the characteristic properties bit field. - It maintains a per-characteristic count of how many callbacks have been registered, so that the CCC descriptor is written to only if the count is 0. - It stores the passed in callback and user data in bt_gatt_client, which will be invoked when a notification/indication is received from the corresponding characteristic. - It queues register requests if the count is 0 and a CCC write is pending, and processes them once the write request has completed.

Diffstat

2 files changed, 347 insertions(+), 39 deletions(-)