<div dir="ltr"><div><br></div>How about sending #reset to set the stream back to the start ?<div><br><div>Read the paragraph above "lseek" here...<br><div><a href="http://falsinsoft.blogspot.com.au/2012/11/access-gpio-from-linux-user-space.html">http://falsinsoft.blogspot.com.au/2012/11/access-gpio-from-linux-user-space.html</a><br></div><div><br></div><div>cheers -ben</div><div><br></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 28, 2015 at 8:45 PM, Herbert König <span dir="ltr"><<a href="mailto:herbertkoenig@gmx.net" target="_blank">herbertkoenig@gmx.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I can successfully read a GPIO Pin on the RasPi if I do it like:<br>
|value|<br>
dataFile ensureOpen.<br>
value := dataFile upToEnd.<br>
dataFile close.<br>
^value<br>
<br>
dataFile is the /sys/class/gpio/gpioxx/value file that exists after exporting gpioxx.<br>
<br>
Without the reopening and closing of the file I get '' on subsequent reads which means that<br>
StandartFileStream>>basicNext answers nil.<br>
<br>
Is there a way to get the values without having to close and reopen the file each time?<br>
<br>
Thanks<br>
<br>
Herbert<br>
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</blockquote></div><br></div>