From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC876C3276C for ; Fri, 3 Jan 2020 01:20:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F79921D56 for ; Fri, 3 Jan 2020 01:20:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZWh4l7sZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726089AbgACBUr (ORCPT ); Thu, 2 Jan 2020 20:20:47 -0500 Received: from mail-il1-f181.google.com ([209.85.166.181]:39297 "EHLO mail-il1-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725872AbgACBUr (ORCPT ); Thu, 2 Jan 2020 20:20:47 -0500 Received: by mail-il1-f181.google.com with SMTP id x5so35464522ila.6 for ; Thu, 02 Jan 2020 17:20:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=h+GMBXbxGePgXeRWnyAv40LFcSlKEWF1htGheF0K9wc=; b=ZWh4l7sZHnJOtJFHRHHQqZ2abPVKCxBqBEOn/9NY1uMKdStYx+f3O2gIDcDFGrV2uk iDwbwsorYGNnqOsPemfP+hHfhQFWUKnnKgxte39evyvLVWcmIXkC91qO5OHL3wfcZIaD Re2lW+A3BJ7PbWacnEVlnoPXVLJ/htqHoR0LbtjFbUsPeOF3YCSiUtjJrif1d8y2bnmn rIJkVLb+DNK9y7fgRiQ7eAgnXvHIMTYgxKl8q0uXsxxeI4wUFM3YIl8bqD37of8z0uNZ kXtLuzB4AqwnuVQL2vR4yVrT3+cJEI9tlotZi7jdJ4mW/8xjF06NuWkj5/y5ABephKwJ jz5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=h+GMBXbxGePgXeRWnyAv40LFcSlKEWF1htGheF0K9wc=; b=X0maTb3/arq63WA9u/Nv/jiCQ+obyPMl939EgRC3lcqYvVPj6Crqv5fJcgV2f6ZG8Y zt7wH9Vr2femIJ/ZcaTNwrUSRIzTmDBvVgDNXIfR76TO6irdUcpFSqdRAA3ARibK1O0I wj2Ta1QSJa6GzmaPwgCjFI3r4qTzUF4r8TnQY71+v23IilPsC4oR+vOOUhyMmJA/bdjS XTQNGsRg6IdPxiitJhNV+IhvvXwV4Bp9AdP58YBSBKpHj/Uucrt6xuzRT3htpdQPgILq HKfXBP+P+G5pibAcyC8e4vpRhgpUMKnkewDLHSbB/l/Sv/MJTYy2bzIZhfB/4NDQY/WI dUhw== X-Gm-Message-State: APjAAAVfAei8xiDBRkF4NNUYD2vP81KdhEUlgZeex8rwv3+USrvdlOOy bJn6G9I5h7gYCv0mAsWqP6PurDZ6PzAri9WwYM0fo62u X-Google-Smtp-Source: APXvYqzCEhJtqeFVmAVq+wm9cMC4Bl9lSj39lSn19deOBRhRlIXdDEujTwXv9qk+H8p+jk4EVQLgxzK0B5k9N0/l7uI= X-Received: by 2002:a92:c747:: with SMTP id y7mr46017271ilp.60.1578014446079; Thu, 02 Jan 2020 17:20:46 -0800 (PST) MIME-Version: 1.0 From: Peter Belau Date: Thu, 2 Jan 2020 19:20:35 -0600 Message-ID: Subject: Problems reading characteristics with Bluez 5.52 To: linux-bluetooth@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org I'm trying to get a Qardio ARM BP monitor working with Linux/Bluez but cannot seem to read any device characteristics with Bluez. My interaction through bluetoothctl looks like this: # menu gatt # attribute-info 00002a35-0000-1000-8000-00805f9b34fb Characteristic - Blood Pressure Measurement UUID: 00002a35-0000-1000-8000-00805f9b34fb Service: /org/bluez/hci0/dev_B0_49_5F_02_B5_61/service0400 Value: 16 7f 00 49 00 5b 00 00 00 00 00 00 00 00 35 00 ...I.[........5. 00 00 .. Notifying: no Flags: indicate # select-attribute 00002a35-0000-1000-8000-00805f9b34fb # read # Attempting to read /org/bluez/hci0/dev_B0_49_5F_02_B5_61/service0400/char0410 Failed to read: org.bluez.Error.Failed I have bluetoothd running with debug flags but nothing appears in the debug logs. What am I doing wrong?