[null,null,["最后更新时间 (UTC)：2022-12-20。"],[[["Seekers can request Providers to perform actions, such as ringing, which should be acknowledged and performed if supported."],["Ringing can be initiated and stopped for single or dual components (like earbuds) using specific data values, with optional timeout duration."],["Providers can notify Seekers of ringing status changes, enabling UI updates on the Seeker's end."],["Seekers expect acknowledgements within 1 second to confirm action execution, otherwise assuming unsupported functionality."],["Device actions use a specific message group and action codes for communication between Seekers and Providers."]]],["Seekers request Providers to perform actions, like ringing. Providers acknowledge and execute supported actions or ignore unsupported ones. The \"Ring\" action (0x01) initiates a preloaded sound, potentially ramping up in volume until stopped or timed out. The first data byte indicates which components (e.g., left/right) should ring, using bit flags (1 for start, 0 for stop). The second byte sets a timeout in seconds. Providers should update Seekers of changes to the ringing status, and Seekers must acknowledge the action.\n"]]
