Messages in this thread | | | Date | Tue, 9 Sep 2014 12:08:56 +0200 | From | Johan Hovold <> | Subject | Re: [PATCH v8] usb:serial:pl2303: add GPIOs interface on PL2303 |
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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 <zoobab@gmail.com> 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
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