[Newbies] Read RasPi GPIO
btc at openInWorld.com
Wed Jan 28 16:35:01 UTC 2015
How about sending #reset to set the stream back to the start ?
Read the paragraph above "lseek" here...
On Wed, Jan 28, 2015 at 8:45 PM, Herbert König <herbertkoenig at gmx.net>
> I can successfully read a GPIO Pin on the RasPi if I do it like:
> dataFile ensureOpen.
> value := dataFile upToEnd.
> dataFile close.
> dataFile is the /sys/class/gpio/gpioxx/value file that exists after
> exporting gpioxx.
> Without the reopening and closing of the file I get '' on subsequent reads
> which means that
> StandartFileStream>>basicNext answers nil.
> Is there a way to get the values without having to close and reopen the
> file each time?
> Beginners mailing list
> Beginners at lists.squeakfoundation.org
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