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=-9.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 E3BC7C433DB for ; Wed, 20 Jan 2021 08:54:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A798422C9E for ; Wed, 20 Jan 2021 08:54:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727742AbhATIyB convert rfc822-to-8bit (ORCPT ); Wed, 20 Jan 2021 03:54:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:58938 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726167AbhATIxd (ORCPT ); Wed, 20 Jan 2021 03:53:33 -0500 Received: by mail.kernel.org (Postfix) with ESMTPS id 8D31D23357 for ; Wed, 20 Jan 2021 08:52:26 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 60824] [PATCH][regression] Cambridge Silicon Radio, Ltd Bluetooth Dongle unusable Date: Wed, 20 Jan 2021 08:52:23 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Drivers X-Bugzilla-Component: Bluetooth X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: er.krali@gmail.com X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: linux-bluetooth@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=60824 er.krali@gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |er.krali@gmail.com --- Comment #165 from er.krali@gmail.com --- (In reply to Yuri Santos from comment #164) > (In reply to vinodmishra from comment #155) > > (In reply to Flole from comment #154) [snip] > > Thanks so much. > > Same device and same issue on Pi Zero. Changing the "#define > > lmp_bredr_capable(dev)" in hci_core.h to return false did the trick. > > Thanks, i did that. Seems to have a advance, but still not working as > expected. > > > Info and logs: > > https://gist.github.com/Yrds/5c2d610c86facc9b1f0522a6509e9e23 I can report some success here using the solution proposed here: https://askubuntu.com/a/1304723 IOW, disabling the "clear event filter" step altogether in hci_core.c (lines around 296-297). Perhaps this could be added as another quirk, but that's sadly beyond my ability. For reference, here's the data of my model (Bluetooth 5.0, bcdDevice 8891) : Features: 0xbf 0x3e 0x4d 0xfa 0xdb 0x3d 0x7b 0xc7 HCI Version: 5.0 (0x9) HCI Revision: 0x810 LMP Version: 5.0 (0x9) LMP Subversion: 0x2312 Manufacturer: Cambridge Silicon Radio (10) idVendor 0x0a12 Cambridge Silicon Radio, Ltd idProduct 0x0001 Bluetooth Dongle (HCI mode) bcdDevice 88.91 iManufacturer 0 iProduct 2 BT DONGLE10 I have tried pairing a couple of devices and it has worked so far. Hopefully a cleaner version of this hack will be able to get into the official kernel. -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.