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ACRTC(4) Device Drivers Manual ACRTC(4)

acrtc
X-Powers AC100 audio codec and real-time clock

acrtc* at rsb?

The acrtc driver provides support for the X-Powers AC100 audio codec and RTC subsystem.

intro(4), sxirsb(4)

The acrtc driver first appeared in OpenBSD 6.3.

The acrtc driver was written by Mark Kettenis <kettenis@openbsd.org>.

Support for the audio codec functionality is missing.
June 18, 2018 OpenBSD-current