From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932166AbaIIKLB (ORCPT ); Tue, 9 Sep 2014 06:11:01 -0400 Received: from mail-lb0-f176.google.com ([209.85.217.176]:47636 "EHLO mail-lb0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752357AbaIIKK5 (ORCPT ); Tue, 9 Sep 2014 06:10:57 -0400 X-Google-Original-Sender: Date: Tue, 9 Sep 2014 12:08:56 +0200 From: Johan Hovold To: Wang YanQing Cc: Benjamin Henrion , gregkh@linuxfoundation.org, linus.walleij@linaro.org, jhovold@gmail.com, andi@lisas.de, dforsi@gmail.com, gnomes@lxorguk.ukuu.org.uk, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v8] usb:serial:pl2303: add GPIOs interface on PL2303 Message-ID: <20140909100856.GC2974@localhost> References: <20140831153201.GA25632@udknight> <20140905013011.GA2133@udknight> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140905013011.GA2133@udknight> User-Agent: Mutt/1.5.22 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 05, 2014 at 09:30:11AM +0800, Wang YanQing wrote: > On Thu, Sep 04, 2014 at 06:44:31PM +0200, Benjamin Henrion wrote: > > On Thu, Sep 4, 2014 at 6:14 PM, Benjamin Henrion wrote: > > > I have subscribed to the lkml. > > > > > > Can you make me a favour, send me your email as you posted on the LKML > > > in mbox format attached to an email? > > > > > > I am trying to reply to it, but I cannot find an mbox archive, outside > > > of gmane which rewrites all the email addresses. > > > > > > Otherwise, I made a page here: > > > > > > http://www.zoobab.com/pl2303hxd-gpio > > > > > > I will also try with other adapters to see if the 2 GPIOs show up. > > > > > > Any idea how to test the GPIO sysfs speed? > > > > Also tested with an HXA laying around, I could export the 2 GPIOS in > > /sys/class/gpio, but I could not change the status of the pins via > > echo. > > > > Any idea why? > > It is strange, I have tested again with my two HXA adapters, they work well. > How do you test? check cat value or check voltage change? I check cat value, > and they work good. So you haven't verified that the voltage actually changes? Johan