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=-5.7 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,URIBL_BLOCKED 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 09893C4338F for ; Tue, 27 Jul 2021 12:37:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E360160F51 for ; Tue, 27 Jul 2021 12:37:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232027AbhG0Mhf (ORCPT ); Tue, 27 Jul 2021 08:37:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231931AbhG0Mhe (ORCPT ); Tue, 27 Jul 2021 08:37:34 -0400 Received: from mail.cyber-anlage.de (cyber-anlage.de [IPv6:2a03:4000:6:30d5::1337]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D8325C061757 for ; Tue, 27 Jul 2021 05:37:34 -0700 (PDT) Received: from cyber-bucket.localnet (p200300f197121200264bfefffe4ac6f3.dip0.t-ipconnect.de [IPv6:2003:f1:9712:1200:264b:feff:fe4a:c6f3]) by mail.cyber-anlage.de (Postfix) with ESMTPSA id 8DA875139F for ; Tue, 27 Jul 2021 14:37:33 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cyber-anlage.de; s=cyber; t=1627389453; bh=wFSnGfQuC6dy5z1HLKOL5etz5pVV6HS0OXb6chOmKlI=; h=From:To:Subject:Date; b=FSl+64JgtsH0O44VfnLZOxwjqQT0icJL9XpG9OHmx4wHqOpeDftq6mIZs8S8Ib6yN 6c0dUKxecyCCKZC/P6jaUHcA/2vQV1BlHHs5Nf59MkSAYCeICxxAhplMfCqWyri3zD 839jMV/O/lBEdctoBt8xxTXNnvhACOg/fTA4dWW25nVR0YdtrnOXRn/Xx9YuHYZ3sI NpPcbgzj3iWNgUTQ5+0fuBOTSX5gRefwu9grR5YSqnCJm1W5JKXn/drIYsVHo7VjC/ QzIp09dz2Uzs76CKMTL0ZQzZaGLYXe+AH5smpNgOwto7Yrv9Y8Wvllowl9x9ookDNK GddWle6w4mkNA== From: Chris To: linux-usb@vger.kernel.org Subject: pl2303 : unknown device type Date: Tue, 27 Jul 2021 14:37:23 +0200 Message-ID: <2560053.x2KRyp2eMa@cyber-bucket> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2278172.MlrV8VzQz5"; micalg="pgp-sha256"; protocol="application/pgp-signature" Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org --nextPart2278172.MlrV8VzQz5 Content-Type: multipart/mixed; boundary="nextPart2512815.1ik1ktxZ7K"; protected-headers="v1" Content-Transfer-Encoding: 7Bit From: Chris To: linux-usb@vger.kernel.org Subject: pl2303 : unknown device type Date: Tue, 27 Jul 2021 14:37:23 +0200 Message-ID: <2560053.x2KRyp2eMa@cyber-bucket> This is a multi-part message in MIME format. --nextPart2512815.1ik1ktxZ7K Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="UTF-8" This problem was introduced with 5.13 and still persists in 5.13.5 After downgrading to 5.12.x, everything works like expected. Tested on archlinux. The device is an "ICP-DAS I-7561" --nextPart2512815.1ik1ktxZ7K Content-Disposition: attachment; filename="dmsg" Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8"; name="dmsg" dmesg -w [ 1999.689678] usb 2-4: new full-speed USB device number 3 using ohci-pci [ 1999.919763] usb 2-4: New USB device found, idVendor=067b, idProduct=2303, bcdDevice=5d.ca [ 1999.919772] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 1999.919775] usb 2-4: Product: USB-Serial Controller [ 1999.919777] usb 2-4: Manufacturer: Prolific Technology Inc. [ 1999.923348] pl2303 2-4:1.0: pl2303 converter detected [ 1999.923365] pl2303 2-4:1.0: unknown device type, please report to linux-usb@vger.kernel.org --nextPart2512815.1ik1ktxZ7K Content-Disposition: attachment; filename="lsusb" Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8"; name="lsusb" lsusb -v Bus 002 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port / Mobile Action MA-8910P Couldn't open device, some information will be missing Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x067b Prolific Technology, Inc. idProduct 0x2303 PL2303 Serial Port / Mobile Action MA-8910P bcdDevice 5d.ca iManufacturer 1 Prolific Technology Inc. iProduct 2 USB-Serial Controller iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0027 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 --nextPart2512815.1ik1ktxZ7K-- --nextPart2278172.MlrV8VzQz5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. 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