Contributed by mitja on from the dancing-on-the-tip-of-a-pin dept.
Marc Balmer (mbalmer@) writes in from h2k8 about a major change in the GPIO subsystem that he just committed:
OpenBSD has had support for General Purpose Input/Output devices since the 3.6 release. GPIO devices, or gpios for short, provide an easy way to interface electronic circuits which can be as simple as a LED or that provide more complex functionality like a 1-Wire or I2C bus.
The GPIO implementation in OpenBSD 3.6 up to and including 4.4, however, has some problems and drawbacks which made me rework larger parts of this subsystem during the h2k8 hardware hackathon in Coimbra, Portugal.
The full story can be found here.
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