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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 72693C433DB for ; Wed, 24 Feb 2021 23:09:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 41ADC64DE9 for ; Wed, 24 Feb 2021 23:09:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236038AbhBXXJV (ORCPT ); Wed, 24 Feb 2021 18:09:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235541AbhBXXJV (ORCPT ); Wed, 24 Feb 2021 18:09:21 -0500 Received: from mail-oi1-x231.google.com (mail-oi1-x231.google.com [IPv6:2607:f8b0:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41F6DC061574 for ; Wed, 24 Feb 2021 15:08:41 -0800 (PST) Received: by mail-oi1-x231.google.com with SMTP id d20so4187702oiw.10 for ; Wed, 24 Feb 2021 15:08:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rollanet.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Wpj+a9V2DGnr0WTvH1xhbbreuTOrd8eGzy9YprlAGH4=; b=XZI8d2HAG+PXl7FXfcDlt5TQpLFgtPQetHTJfI6IpBsL/c8Rf8jUVT/rNIWvpSw/aJ zd7LIOJIxH1GQTasUEOQHY+vaPowcb3zW67jkoHUr0/s1LBNkT/pGyuDKXqTLPtR7ZUq QH115lVITHW2rNwKBRRvd+IbbPhAOu+Rprud4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Wpj+a9V2DGnr0WTvH1xhbbreuTOrd8eGzy9YprlAGH4=; b=GJx7Zpt1DTqliM+NJzOMZd2qRSFrGq9WBkSS6ZTBHw2sd5K3DL6QhtyfKW+ckFDHu6 gcIoGO6DXlKQEXt8A1qVnxSRTZgjAciqpHqmlPDDprCHCS/h4xQ2N5K+QA54bI6BTkFe 4qx4nWp5DRrBAmniJ6B+sOKLRivJga2H3Ve2jQf0Sb2O07N4gX6GEMBm6zqvec/z2Sh9 6jL+VY1wPrM7IkGj1mC/N29MyI2w0sgV1SSHL6WokgsdgpLDcXgcUI+YYqrg23YsBDbE TAikzwOgQsV5fEa0hqYQMhQ8iixZ5mACev8YEO/zm2GNq13LLnnXp2ObCcyrJJM96TX7 lM9A== X-Gm-Message-State: AOAM532CPs4IyL96GJ4Hp0f4FZjPFDwXq68Jv9wYAuxajHsHjRK6bJcV /1vzaNZl72APiWuuhSOInlUSnTUmdO/fEC/0K2kPd5MP8IU0QzDl X-Google-Smtp-Source: ABdhPJya/F7ZAHjdEhuzxI9gop64Kvg2YCTi/GZAPPQH+qO1s6iohv/sozlJb/Tenm6AHlcLKegsn5QwvcjJehxIrvg= X-Received: by 2002:aca:1113:: with SMTP id 19mr4277792oir.32.1614208120498; Wed, 24 Feb 2021 15:08:40 -0800 (PST) MIME-Version: 1.0 References: <3aee5708-7961-f464-8c5f-6685d96920d6@IEEE.org> <0f9caf26-af58-13a9-9947-47bb646f505e@IEEE.org> In-Reply-To: From: Joe Abbott Date: Wed, 24 Feb 2021 17:08:28 -0600 Message-ID: Subject: Re: non-standard baud rates with Prolific 2303 USB-serial To: Johan Hovold Cc: "Michael G. Katzmann" , charles-yeh@prolific.com.tw, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, Charles Yeh Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org On Mon, Feb 22, 2021 at 10:48 AM Johan Hovold wrote: > > Joe, would you mind posting the output of "lsusb -v" for your device as > well? > Bus 007 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x067b Prolific Technology, Inc. idProduct 0x2303 PL2303 Serial Port bcdDevice 3.00 iManufacturer 1 Prolific Technology Inc. iProduct 2 USB-Serial Controller iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x000a 1x 10 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) Also, here's the 110b windows wireshark capture https://drive.google.com/file/d/1HP5RMRtP11zm4uQNzqlcbILGwebDJaOz/view?usp=sharing Joe