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32 lines
705 B
Markdown
32 lines
705 B
Markdown
# eMMC
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## Introduction
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This plugin reads the sysfs attributes corresponding to eMMC devices.
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It uses the kernel MMC API for flashing devices.
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## Protocol
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eMMC devices support the `org.jedec.mmc` protocol.
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## GUID Generation
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These devices use the following instance values:
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* `EMMC\%NAME%`
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* `EMMC\%MANFID%&%OEMID%`
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* `EMMC\%MANFID%&%OEMID%&%NAME%`
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## Update Behavior
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The firmware is deployed when the device is in normal runtime mode, but it is
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only activated when the device is rebooted.
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## Vendor ID Security
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The vendor ID is set from the EMMC vendor, for example set to `EMMC:{$manfid}`
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## External Interface Access
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This plugin requires ioctl `MMC_IOC_CMD` and `MMC_IOC_MULTI_CMD` access.
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