BLUETOOTH_PRIVILEGED error HID keyboard

RE: BLUETOOTH_PRIVILEGED error HID keyboard

Hung Bui — Tue, 03 Apr 2018 03:47:03 GMT

Have you read the answer by Aleksander ? It's not possible for 3rd party app to access HID service, only Android system can. You need to access data from HID device as it's normal keyboard.

RE: BLUETOOTH_PRIVILEGED error HID keyboard

Mon, 02 Apr 2018 15:16:36 GMT

i am also facing same issue so how we can check this for app and enable the notification to get the report

RE: BLUETOOTH_PRIVILEGED error HID keyboard

chris — Mon, 08 Jan 2018 09:58:38 GMT

Thank you for clarifying this. I have now mostly done what I wanted to, and I shall now access the HID data through the operating system, not though the BLE APIs in my Android program.

RE: BLUETOOTH_PRIVILEGED error HID keyboard

Aleksander Nowakowski — Mon, 08 Jan 2018 09:44:39 GMT

Hi,

You are right, this is to prevent 3rd party apps from using this service. Only apps having BLUETOOTH_PRIVILEGED permission (that is those signed with Google's key, so Settings, Android system itself, etc.) can access characteristics and descriptors in this service. It is not possible to do any walk-around. If you need to add some additional features to your keyboard, you have to use a different, custom service, that only your app will be able to understand. You may have HID and other services on one device. System will use the HID service, your app others.

This permission is required since Android 5 onward. Before Lollipop, it was possible for any app to enable notifications on HID Report characteristic and listen to any keys (passwords!) typed in. Starting from 5 it is guaranteed that only the system will receive sensitive data typed by the user and it will send them to the correct app as keys, not as BLE events.

Please, read more here: devzone.nordicsemi.com/.../ in 4.6.

Best Regards, Aleksander