Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp3451531pxf; Mon, 29 Mar 2021 02:34:07 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxsWbhpu8c293i2GtA9+vV2RZ6Ga7Vne3tzoL2hm5G6QjJ7NVB31REmZiwUQpLwzD72kA4d X-Received: by 2002:a17:907:1c1e:: with SMTP id nc30mr27995689ejc.34.1617010447536; Mon, 29 Mar 2021 02:34:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1617010447; cv=none; d=google.com; s=arc-20160816; b=jUejO0T72xCp8ej5n/KzamOtiAdjkB/fAUyHDB1kp2/cG6tZqEFmWH8BFEP7HeeBM+ ayE/F3+tDvobheEXCzFTFQsVki3/gxCKTd5Y1FtWMgnKFubLFnKpcbafzzsHnzSro1S6 ZRxhwb8N91n4d8vMUW35r+7v1PxzpP52756GRubw9DsoIcwGbCOn8iFqtl5aFU9MwgvE R85D8jh1AugeI19vy09A3T/94ytf6aDHwP/RJEITKzfJKBE56JqHqYMteQuVTclk03fp lci0OnpXWPdwnYuZYbTzqcwcg/V0waZ1j/XaXZOotAUSKoBhxcZpQDVD7LXoysAT6DlY oUWg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=0xBS9P8783p2Ffeva1scoJbGz2K6fku+BkRueXL2dXQ=; b=g1hsoMlqrsZxopJp8qDuvBZj3I+kmNF9suixKYaFUoL0aQcXBfwiFKpqGRuF5tli6G oKXXIoTI6NeIp37o2vI2x94iBnz2XGgzu8Y9OO79bS+3cP+cHFzyiXgTgB4IDO725NYB yOKVh6HCbnE77r+d8obwzKg/WPR9SB0nu18oiF/dBqmg8fpj59afKCGd5b9sTSmgKZ/F aiV1wPXkrpcleeqQctA31ukoxcq6l4z92jSbDMqtZdp9LnWwYc6u7An2UFKonhgVznn5 LeeA5dmslETjZoWVrUocyF7v4QfPp8RNPeRCfUe7VgguWy+GG84MW2n1HAPQwkkVJD0Y wWuQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id nd18si12956225ejc.562.2021.03.29.02.33.44; Mon, 29 Mar 2021 02:34:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232239AbhC2Jaz (ORCPT + 99 others); Mon, 29 Mar 2021 05:30:55 -0400 Received: from elvis.franken.de ([193.175.24.41]:33849 "EHLO elvis.franken.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231862AbhC2JaX (ORCPT ); Mon, 29 Mar 2021 05:30:23 -0400 Received: from uucp (helo=alpha) by elvis.franken.de with local-bsmtp (Exim 3.36 #1) id 1lQoE1-0003qb-07; Mon, 29 Mar 2021 11:30:21 +0200 Received: by alpha.franken.de (Postfix, from userid 1000) id 75349C1D90; Mon, 29 Mar 2021 11:27:07 +0200 (CEST) Date: Mon, 29 Mar 2021 11:27:07 +0200 From: Thomas Bogendoerfer To: Qing Zhang Cc: Jiaxun Yang , Huacai Chen , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] MIPS: Loongson64: enable CONFIG_USB_SERIAL_PL2303 Message-ID: <20210329092707.GG8484@alpha.franken.de> References: <20210329071558.3492-1-zhangqing@loongson.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210329071558.3492-1-zhangqing@loongson.cn> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 29, 2021 at 03:15:58PM +0800, Qing Zhang wrote: > When using the Loongson-3A4000 machine for serial port debugging, > there is no /dev/ttyUSB* output, which makes the serial port unavailable, > For convenience, we open this configuration. > > zhangqing@loongson-pc:~$ cat /sys/firmware/lefi/boardinfo > Board Info > Manufacturer : THTF > Board Name : THTF-LS3A4000-7A1000-ML4A > Family : LOONGSON3 > > BIOS Info > Vendor : ZD tech > Version : ZD tech-V2.1.1 > ROM Size : 4 KB > Release Date : 2020-06-29 > > zhangqing@loongson-pc:~$ lsusb > Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub > Bus 005 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse > Bus 005 Device 002: ID 0c45:760b Microdia USB Keyboard > Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > Bus 003 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Signed-off-by: Qing Zhang > --- > arch/mips/configs/loongson3_defconfig | 1 + > 1 file changed, 1 insertion(+) applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]