SDHC(4) | Device Drivers Manual | SDHC(4)

# NAME

`sdhc` — SD Host Controller

# SYNOPSIS

`sdhc* at acpi?`
`sdhc* at fdt?`
`sdhc* at pci?`
`sdmmc* at sdhc?`

# DESCRIPTION

The `sdhc` driver provides support for SD controllers following the SD Host Controller Standard Simplified Specification.

The sdmmc(4) subsystem performs SD/MMC transactions to communicate with whatever MMC, SD, SDHC, or SDIO devices are inserted into the SD slot.

# SEE ALSO

intro(4), sdmmc(4)

# HISTORY

The `sdhc` driver first appeared in OpenBSD 4.0.

# AUTHORS

The `sdhc` driver was written by Uwe Stuehler <uwe@openbsd.org>.

August 6, 2020 | Debian