Peter Bogdanoff wrote:

> On Jan 7, 2021, at 3:07 PM, Richard Gaskin wrote:
>> Maybe.
>> Does your Pi_gpio_output function use file I/O calls to the virtual
>> file system in /run, or call an LCB or external using a lower-level
>> interface for GPIO?
> Maybe. Maybe not. In spite of all events, this may be the most
> challenging, nay, inscrutable question I have seen this year.

From you I'll take that as a compliment. :)

If this is interesting I don't mind breaking that down for people who don't yet spend as much time on the Raspberry Pi. Linux virtual directories are a pretty nifty invention.

 Richard Gaskin
 Fourth World Systems
 Software Design and Development for the Desktop, Mobile, and the Web

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