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OCTMMC(4) Device Drivers Manual (octeon) OCTMMC(4)

octmmc
OCTEON MMC host controller

octmmc* at fdt?
sdmmc* at octmmc?

The octmmc driver provides support for the OCTEON MMC host controller, which provides an interface to the sdmmc(4) bus.

sdmmc(4)

The octmmc driver first appeared in OpenBSD 6.1.

SDIO interrupts are not supported.
July 10, 2017 OpenBSD-current