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DEMO (not for merge): LE Data Length Change fix for #514 on macOS Tahoe with AX201 pair issue - #515
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Patch provided by plooshi.
…AIT_FOR_LENGTH (OpenIntelWireless#514) On macOS Tahoe a BLE HID link connects, encrypts and completes PHY, but bluetoothd stalls at LE_READY_WAIT_FOR_LENGTH: the Intel controller never emits an LE Data Length Change event, so GATT never runs and no HID binding happens. Resend HCI_OP_LE_READ_REMOTE_FEATURES twice and rewrite the resulting duplicate LE Read Remote Features Complete events in a 3-stage machine: stage 0 passes the real event through, stage 1 rewrites to a fake PHY Update Complete, stage 2 rewrites to a fake LE Data Length Change (27 octets / 328us, handle copied from the live event). This clears the stall and HID binds. Also bump MODULE_VERSION to 2.5.2.
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This was referenced Oct 10, 2026
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This is a patch for AX201 that won't get pair with keyboard but fine for AirPods and Trackballs that do not need pair code
I think most of people here with AX201 shared the same problem so this is a PR demo for you to build it your own. This patch verified under OC 1.0.7 with Tahoe 26.7.1
Opened only as a reference / demo for anyone hitting #514 (BLE HID devices won't bind on macOS Tahoe). Not intended to be merged here. The direct-upstream PR is lshbluesky#1.
Problem
On macOS Tahoe a BLE HID link connects, encrypts and completes PHY, but
bluetoothdstalls atLE_READY_WAIT_FOR_LENGTH: the Intel controller never emits an LE Data Length Change event, so GATT never runs and the HID device never binds.Fix
Resend
HCI_OP_LE_READ_REMOTE_FEATUREStwice and rewrite the resulting duplicate LE Read Remote Features Complete events in a 3-stage machine:This clears the stall and the BLE HID device binds. Verified on an Intel controller with a BLE keyboard on macOS Tahoe.
Important
This fix was written by Claude, an AI assistant. It is provided as-is, with no warranty — please review and test it, and use it at your own risk.