Function

IOBluetoothL2CAPChannelRegisterForChannelCloseNotification(_:_:_:)

Allows a client to register for a channel close notification.

Declaration

func IOBluetoothL2CAPChannelRegisterForChannelCloseNotification(_ channel: IOBluetoothL2CAPChannelRef!, _ callback: IOBluetoothUserNotificationCallback!, _ inRefCon: UnsafeMutableRawPointer!) -> Unmanaged<IOBluetoothUserNotificationRef>!

Parameters

channel

The target L2CAP channel

callback

Callback to be called when the L2CAP channel is closed.

inRefCon

Client-supplied refCon to be passed to the callback.

Return Value

Returns an IOBluetoothUserNotificationRef representing the outstanding L2CAP channel close notification. To unregister the notification, call IOBluetoothUserNotificationUnregister() with the returned IOBluetoothUserNotificationRef. If an error is encountered creating the notification, NULL is returned. The returned IOBluetoothUserNotificationRef will be valid for as long as the notification is registered. It is not necessary to retain the result. Once the notification is unregistered, it will no longer be valid.

Discussion

The given callback will be called when the L2CAP channel is closed.

See Also

Miscellaneous

func IOBluetoothIgnoreHIDDevice(IOBluetoothDeviceRef!)

Hints that the macOS Bluetooth software should ignore a HID device that connects up.

func IOBluetoothRemoveIgnoredHIDDevice(IOBluetoothDeviceRef!)

The counterpart to the above IOBluetoothIgnoreHIDDevice() API.