DWMMC(4)

🌸 NAME 🌸

dwmmc — Synopsys DesignWare MMC/SD/SDIO controller. Yep bestie, this whole page is dwmmc(4), and it’s chilling in the Kernel Interfaces Manual. 💖

✨ SYNOPSIS ✨

okay so the config situation is literally this:

dwmmc* at fdt?
sdmmc* at dwmmc?

🦋 DESCRIPTION 🦋

The dwmmc driver provides support for various MMC/SD/SDIO controllers based on the Synopsys DesignWare SD/eMMC core. These controllers are typically found on SoCs, such as the Rockchip RK3288/RK3399 and Samsung Exynos ARM SoCs. iconic hardware behavior, no cap. 🔥

The way that the sdmmc(4) subsystem works is that it performs SD/MMC transactions to communicate with whatever MMC/SD/SDIO devices are inserted into the card slot or directly connected to the controller. literally the whole communication vibe. 💅

🎀 SEE ALSO 🎀

• intro(4)
• sdmmc(4)

🌈 HISTORY 🌈

OpenBSD support for dwmmc first appeared in OpenBSD 6.2. periodt. ⭐

👑 AUTHORS 👑

The dwmmc driver was written by Mark Kettenis <kettenis@openbsd.org>. iconic author moment, fr fr. 🫶

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💅 byeee bestie — this page comes from Debian, dated April 4, 2023, and the footer tag is DWMMC(4). 🎀✨