RS9116 Bluetooth LE SDK Version 2.12.1 (September 10, 2025) - Release Notes#

RS9116

Release Summary#

Key Features | API Changes | Bug Fixes | Chip Enablement

Key Features#

BT-Classic#

• BT Dual Mode

• GAP (Generic Access Profile)

• SDP (Service Discovery Protocol)

• SPP (Serial Port Profile)

• SSP (Secure Simple Pairing)

• A2DP (Advanced Audio Distribution Profile) – Source Streaming

• AVRCP (Audio/Video Remote Control Profile)

• AVDTP Stats (Audio/Video Distribution Transport Protocol)

• Enhanced Data Rate (EDR)

• Role Switch

• Sniff Mode

• Adaptive Power Control

• Wireless Power Save

Bluetooth Low Energy#

• GAP

• Generic Attribute Protocol (GATT)

• Attribute Protocol (ATT)

• Security

• HID (Human Interface Device Profile)

• LL Privacy 1.2

• Accept List

• Directed Advertising

• LE PHY and Coded PHY

• Simultaneous scanning on 1Mbps and Coded PHY

• LE dual role topology

• LE data packet length extensions (DLE)

• Asymmetric PHYs

• LE channel selection algorithm 2 (CSA#2)

• LE Secure connections

• Extended Advertising

• Extended Advertising Scanning

• LE periodic advertising synchronization

• Periodic Advertising

• Periodic Advertising List

• Periodic Advertising Scanning

• Wireless Power Save

API Changes#

• APIs have been added to set and retrieve the BTC and BLE country region settings for RS9116 ACx modules.

Bug Fixes#

None

Chip Enablement#

None

Key Features#

New Features | Enhancements | Removed Features | Deprecated Features

Note: See Feature Matrix for a list of any applicable APIs, examples, software variants, modes, hardware, and host interfaces for each feature.

New Features#

• For RS9116 ACx modules, a separate country region command has been added for BLE and BTC. Users can independently configure the BLE and BTC region settings before connecting to an Access Point (AP). After a successful AP connection, the BLE and BTC region settings are automatically updated to match the region supported by the AP.

• Full production (FP) characterization has been completed for ACx modules.

Enhancements#

None

Removed Features#

None

Deprecated Features#

None

API Changes#

New APIs | Modified APIs | Removed APIs | Deprecated APIs

New APIs#

• rsi_bt_set_country_region

• rsi_bt_get_country_region

Modified APIs#

None

Removed APIs#

None

Deprecated APIs#

None

Bug Fixes#

None

Removed Examples#

None

Deprecated Examples#

None

Known Issues and Limitations#