shared/gatt: Make register_notify cancellable This patch makes CCC writes via bt_gatt_client_register_notify cancellable. The following changes have been introduced: 1. bt_gatt_client_register_notify now returns the id immediately instead of returning it in a callback. The callback is still used to communicate ATT protocol errors. 2. A notify callback is immediately registered, so that if the remote end sends any ATT notifications/indications, the caller will start receiving them right away.

Diffstat

3 files changed, 91 insertions(+), 62 deletions(-)