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=-5.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 E4DE6C4743D for ; Tue, 8 Jun 2021 23:36:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB3AE61246 for ; Tue, 8 Jun 2021 23:36:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235245AbhFHXh6 (ORCPT ); Tue, 8 Jun 2021 19:37:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234752AbhFHXh4 (ORCPT ); Tue, 8 Jun 2021 19:37:56 -0400 Received: from mail-ot1-x32f.google.com (mail-ot1-x32f.google.com [IPv6:2607:f8b0:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AACC6C061574; Tue, 8 Jun 2021 16:36:02 -0700 (PDT) Received: by mail-ot1-x32f.google.com with SMTP id w23-20020a9d5a970000b02903d0ef989477so17678201oth.9; Tue, 08 Jun 2021 16:36:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=11L9EZCTwrDHTYvTO9qriIZoVtGiINe/wCCaSPlNKf8=; b=Uoewj/YDhpVc7q/P0nuMJMSmQ50ugmYGSlxPPj4RVumXTcmH/qRC0XXzwQ8BcUx0KH 66SATvMb+Xhb79bzPIkW4owPUpu7+v6o8u2c/22d13miCKVaxY5myb0NWNd3HhLDqL4H +QR5/55XerPmjVShE/LkoietJDTrV4b3LYGGZr+HMijF9vREkLVyZ6KXkvAuITg9StwJ wAwXWD2zudlHgldxVBeD2CtBoFfC2efEdShyyyuHKdtwv+v05b/njK8rASyxbxcD+O1y pcFG9b7G14yukZT3OdYUttHRslsFdCv7gVA361kTxKIdvjtTijh34oSwMIdYDKQ0bVuo ODVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=11L9EZCTwrDHTYvTO9qriIZoVtGiINe/wCCaSPlNKf8=; b=Qt/N3uCZ973K3ThUX73vLSFf1jlY68PofF7Xv7Ef6JHpW63Bg0RxDM5ourH120mo0g z414A3tvu8Uc/0jfSEqBHzss8rkjBIMD+anCITPlgiWzr9F6acsUF7FiEo3z+xRYelfz hdpgrzglrYgVN0bg0gzBvvcKLrLHIcLXyPBnT7ASkZmKIZB9UftPsEukr5kzdKKzbLvy FOZ1AkK9uHaVH63a71oo7teoomOv9Cqn93dag5rjJ1dE2qaKlv0v5jocg1cLBnJ9CBnD fXZPU7AQ56+Q6Mh5Goc2A0kqzaSNJVmSbEb/lBAnIigHyr+fcQOy/8Abi8BIApiyH+zP w2dg== X-Gm-Message-State: AOAM5324W5DoOArEDY5p18EDn8ERnnwbrmUseV8Wi0CBTFQoXatayN52 Y8zwiAt90wnxcJ+ybUhqzSat8RSpU0A= X-Google-Smtp-Source: ABdhPJzzxO/BM32kFIondkYsXDm8R27t/zWwuayeKSE2bSbC8zdiMEWyQ56G8lfJnGD6oMUTLDpxFw== X-Received: by 2002:a9d:684d:: with SMTP id c13mr19845118oto.201.1623195358787; Tue, 08 Jun 2021 16:35:58 -0700 (PDT) Received: from linux.local (cpe-24-31-245-230.kc.res.rr.com. [24.31.245.230]) by smtp.gmail.com with ESMTPSA id t26sm3463360oth.14.2021.06.08.16.35.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Jun 2021 16:35:58 -0700 (PDT) Sender: Larry Finger Subject: Re: Strange problem with USB device To: Alan Stern , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, LKML , ierturk@ieee.org References: <20210608182038.GA1812516@rowland.harvard.edu> <20210608185314.GB1812516@rowland.harvard.edu> From: Larry Finger Message-ID: <6a6183b3-d113-179e-6939-d92bafb62398@lwfinger.net> Date: Tue, 8 Jun 2021 18:35:57 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.2 MIME-Version: 1.0 In-Reply-To: <20210608185314.GB1812516@rowland.harvard.edu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/8/21 1:53 PM, Alan Stern wrote: > Yes. Use the kernel boot-line parameter: > > usbcore.dyndbg="=p" > This command was tried, but no additional output occurred in dmesg. The user has now tried a number of Linux distros, none of which worked, thus it seems to be a kernel problem. I have written to the BT people at Realtek to see if they have an suggestions. I will let you know when I learn more. Larry