[Ksummit-discuss] [TECH TOPIC] GPIO API/ABI discussion

Michael Welling mwelling at ieee.org
Mon Jul 20 20:33:58 UTC 2015


I propose that there be a discussion as to the future direction
of the GPIO userspace interface.

Here are some topics in need of discussion:
- The continued use of the sysfs interface and possible enhancements
or restructuring.
- The possibility of a char interface and its implications.
- The introduction of gpio groups to userspace.

Here are some links to various discussions on the mailing list:
https://lwn.net/Articles/533632/
https://lwn.net/Articles/651500/
https://lkml.org/lkml/2015/1/5/496
https://www.mail-archive.com/linux-gpio@vger.kernel.org/msg06185.html



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