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CONFIG_MMC_USHC: USB SD Host Controller (USHC) support

General informations

The Linux kernel configuration item CONFIG_MMC_USHC:

Help text

This selects support for USB SD Host Controllers based on the Cypress Astoria chip with firmware compliant with CSR's USB SD Host Controller specification (CS-118793-SP).

CSR boards with this device include: USB<>SDIO (M1985v2), and Ultrasira.

Note: These controllers only support SDIO cards and do not support MMC or SD memory cards.



Numeric ID (from LKDDb) and names (from usb.ids) of recognized devices:


Raw data from LKDDb:


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Automatically generated (in year 2024). See also LKDDb sources on GitLab