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=-7.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 68DC2C07E95 for ; Wed, 7 Jul 2021 07:34:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4D1E761CB3 for ; Wed, 7 Jul 2021 07:34:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230460AbhGGHhY (ORCPT ); Wed, 7 Jul 2021 03:37:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230441AbhGGHhV (ORCPT ); Wed, 7 Jul 2021 03:37:21 -0400 Received: from mail-il1-x129.google.com (mail-il1-x129.google.com [IPv6:2607:f8b0:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F97FC06175F for ; Wed, 7 Jul 2021 00:34:42 -0700 (PDT) Received: by mail-il1-x129.google.com with SMTP id g3so1369408ilq.10 for ; Wed, 07 Jul 2021 00:34:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:reply-to:from:date:message-id:subject:to; bh=cUBHpK4dPdFwmOCTay6nol97uvUmFvxjVxg2/LGiyS4=; b=pYfsQZTzbn7V0k5a28weiTXpPzJ2et01zp77vyyFdD+CtnCn6RdZDq0Wgkahjoqr+U PKN/vDzGPHwENQD/h6dWRgULiDQXRk/Ghgqk9ulfuxuETsYMBjsLLK2g5Z3JnjjRBDF5 f4qyUcdyhfZn1q6Ef7DhBbR6O0y4DdBh3FyoqwdzOh+Y+HpQdy7HvSxIYSTqDXb3eBIm ZXGWDVhD+1vsc9f62cuAGjEO9gJ8RX/vGBwksKM6LoW3TsCzzg0410CaYfBpGzAfNGOX tPJ/2yIsb5mf6IYeULhBNbp/ie6SiizCfabUX+ITlmVVsa78dbaMw3da1A5lnGCDOyDV Jp6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:reply-to:from:date:message-id :subject:to; bh=cUBHpK4dPdFwmOCTay6nol97uvUmFvxjVxg2/LGiyS4=; b=Q0+bQgoeFPqfo32IHd00dXgXdeS38QT6Jxf2gU7DC444bm6rWyyUXsYByo6zCD2vql 7wbiHRCZ4mgHGKW6e4X43yBG0y41fSuKHmZ4XXMZvr21Os66o455lbXFvdE4W70bJ23K 7raw6bDJD1467kxBBynq6PsZrd6M1uMw5I0wSA39D5umhmQKpTDn4D2SuwZGZlv4HL30 ya0ovMBUgkvfICM5+BnZtO1MGc6wd1DizfArWZF2uFGZiVi48Jraj85t5SjxfRs5T04O 6pDQflgBZhacu9PkJzvJnOgDifXNZzJ50Ol/OB34L+JWDY/xbjiRRuAGyCqnRnmyEJTV fM7A== X-Gm-Message-State: AOAM531z7uLNhm6pbj4mEs08JmPSfU0EuLEDMp92oVN2saYt932JD1C0 vHZogZH6MG0s5cjZRItJMHPQZAT2JSozIaJsBOkjI4O8XDY= X-Google-Smtp-Source: ABdhPJyX6VqxcDdPr7BBg2jHI6rybMvGuuxuTPsKf/bKEIqqrXR94qFQnpoi0ihIHUgLUwFz1W1g9njigXFxEijis6g= X-Received: by 2002:a05:6e02:1041:: with SMTP id p1mr17759271ilj.238.1625643281541; Wed, 07 Jul 2021 00:34:41 -0700 (PDT) MIME-Version: 1.0 Reply-To: noloader@gmail.com From: Jeffrey Walton Date: Wed, 7 Jul 2021 03:33:52 -0400 Message-ID: Subject: CH341 driver and the 5.4 kernel To: linux-usb@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hi Everyone, I'm trying to track down the cause of some garbage in a response when using an ELM327 (https://www.elmelectronics.com/ic/elm327/) with a CH341 serial controller. I see there's been a fair amount of activity with the CH341 (https://github.com/torvalds/linux/commits/master/drivers/usb/serial/ch341.c), but I can't tell if its been backported to the 5.4 kernel. Specifically, the 5.4.0-77 kernel supplied with Ubuntu 18.04 and Mint 20.1. Does anyone know if the fixes and improvements for the CH341 have made their way into the 5.4 kernel? Thanks in advance. Jeff