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IICMUX(4) Device Drivers Manual IICMUX(4)

iicmuxI2C mux

iicmux* at iic?
iic* at pcamux?

The iicmux driver provides support for I2C bus multiplexers that use SoC pin multiplexing to route the I2C signals.

iic(4), intro(4)

The iicmux driver first appeared in OpenBSD 7.1.

The iicmux driver was written by Mark Kettenis <>.

November 21, 2021 OpenBSD-current