SDIO Fast-Path Support
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8/28/2008
Fast-Path operations improve transfer performance on high speed SDIO and SD cards by utilizing polling in the host controller driver. Polling within the host controller driver eliminates context switching and operating system overhead. The removal of overhead associated with interrupt handling and thread switching, coupled with increased CPU utilization resulting from the introduction of polling, allows for increased efficiency and speed during transfers.
Windows Embedded CE supports SD and SDIO Fast-Path operations as of Windows Embedded CE 6.0.
In This Section
- SDIO Fast-Path Overview
Provides an overview of Fast-Path operations.
- SDIO Bus Driver Fast-Path Support
Provides information on the necessary changes for an SDIO bus driver to support Fast-Path.
- SDIO Client Driver Fast-Path Support
Provides code samples for an SDIO client driver to use with a SDIO bus driver that supports Fast-Path operations.
- SDIO Host Controller Driver Fast-Path Support
Provides information on the necessary changes for an SDIO host controller driver to support Fast-Path.
Related Sections
- Secure Digital Card Driver Development Concepts
Provides information on SD card driver development.
- SDIO Soft-Block Support
Provides information on Soft-Block operations.