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---
page_type: sample
description: "Provides a functional miniport implementation for a standard SD host controller."
languages:
- cpp
products:
- windows
- windows-wdk
---
# Standard SD Host Controller Miniport
This is a sample for a Secure Digital (SD) Host Controller miniport driver. The driver works in conjunction with sdport.sys, which implements SD/SDIO/eMMC protocol and WDM interfaces, to provide the host register interface.
## Universal Compliant
This sample builds a Windows Universal driver. It uses only APIs and DDIs that are included in Windows Core.
This driver, sdhc.sys, provides a functional miniport implementation for a standard SD host controller.
However, it does not have support for many more recent features such as:
- UHS-I speed modes.
- HS400
- SD 4.0
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