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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2361C4332F for ; Mon, 19 Dec 2022 21:06:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232246AbiLSVGm (ORCPT ); Mon, 19 Dec 2022 16:06:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230470AbiLSVGl (ORCPT ); Mon, 19 Dec 2022 16:06:41 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64DE02DF4 for ; Mon, 19 Dec 2022 13:06:40 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 0324661156 for ; Mon, 19 Dec 2022 21:06:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 52F09C433EF for ; Mon, 19 Dec 2022 21:06:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671483999; bh=bRpzEg/ChzUYvonZSvjCdTwZ9tQXpoHHYnKHA7NSrx8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=BBy+/nolrcuLRYIMJIq+hp1EqVSBLWqR7RoTiFUkoI5BNK+IC4xqbqNXvQYqWJB9K CkeVdYFErY0/hM3XqSEChXpqdp3jYNp4aedTXfHP0gmLtvjSTi5nNaQsma3wG3D8B3 DkiG9r70d3kp7A0O3gDB7iK7CkYhlKIawtPJ89WubNCkOjKAdoQdkzYWFDNh0AE3SJ 8FBYc/AgfV2cVUcoSl1E4U0tqq6wj6pGgd+C1P7K+LuRQEz6/zoXf8Tx9xvSaBhPpE cB709+5WRz9LnrfP0s0L9nQFCJOyRPA+teBaWPM/44L134XjXKScewddVV4yUllthb tiKzFFAyxeeZQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3B3FAC43143; Mon, 19 Dec 2022 21:06:39 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 216817] btusb device with ID 0489:e0d0 no longer working after v6.0 Date: Mon, 19 Dec 2022 21:06:39 +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: luiz.dentz@gmail.com X-Bugzilla-Status: NEW 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: quoted-printable 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=3D216817 Luiz Von Dentz (luiz.dentz@gmail.com) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |luiz.dentz@gmail.com --- Comment #4 from Luiz Von Dentz (luiz.dentz@gmail.com) --- Looks like the command that is failing is HCI_OP_LE_READ_BUFFER_SIZE_V2: #define HCI_OP_LE_READ_BUFFER_SIZE_V2 0x2060 Looks like the controller is marking as supported but in fact it doesn't: /* Use Read LE Buffer Size V2 if supported */ if (hdev->commands[41] & 0x20) return __hci_cmd_sync_status(hdev, HCI_OP_LE_READ_BUFFER_SIZE_V2, 0, NULL, HCI_CMD_TIMEOUT); So either we introduce a quirk that must be set by the driver or we fallbac= k to HCI_OP_LE_READ_BUFFER_SIZE if HCI_OP_LE_READ_BUFFER_SIZE_V2 is not supporte= d, the later perhaps save us more time detecting this broken behavior since so= me manufacturers don't seem to even care to qualify their controllers. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=