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FANPWR(4) Device Drivers Manual FANPWR(4)

fanpwrFairchild FAN53555 voltage regulator

fanpwr* at iic?

The fanpwr driver provides support for the Fairchild FAN53555, Silergy SYR827/828 and Tang Cheng TCS4525 voltage regulators.

iic(4), intro(4)

The fanpwr device driver first appeared in OpenBSD 6.4.

The fanpwr driver was written by Mark Kettenis <>.

February 13, 2023 OpenBSD-current