---
name: "mmcsd"
section: "4freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "12.2-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mmcsd/4freebsd"
---

# mmcsd(4freebsd)

MMC and SD memory card driver

## NAME

**mmcsd** – MMC and SD memory card driver

## SYNOPSIS

**device** **mmcsd**

## DESCRIPTION

The **mmcsd** driver implements direct access block device for MMC and SD memory cards.

## SEE ALSO

at91\_mci(4), [mmc(4)](/mmc/4.md), [sdhci(4)](/sdhci/4.md) *SD Specifications, Part 1, Physical Layer, Simplified Specification*. *The MultiMediaCard System Specification*.