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fwupd/plugins/emmc
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Richard Hughes b3f9841924 Support more than one protocol for a given device 
Devices may want to support more than one protocol, and for some devices
(e.g. Unifying peripherals stuck in bootloader mode) you might not even be able
to query for the correct protocol anyway.
2021-03-01 16:14:36 +00:00
..
emmc.quirk Add a new plugin for working with eMMC devices (Fixes: #1455) 2019-10-18 14:18:09 -05:00
fu-emmc-device.c Support more than one protocol for a given device 2021-03-01 16:14:36 +00:00
fu-emmc-device.h Add a new plugin for working with eMMC devices (Fixes: #1455) 2019-10-18 14:18:09 -05:00
fu-plugin-emmc.c Use FWUPD_COMPILATION define to indicate an in tree build 2021-01-22 14:01:25 -06:00
meson.build Move the plugin build logic to the plugins themselves 2021-02-18 14:46:20 +00:00
README.md Add a new internal flag to opt-in to GUID matching 2021-02-25 15:47:25 +00:00

README.md

eMMC Support

Introduction

This plugin reads the sysfs attributes corresponding to eMMC devices. It uses the kernel MMC API for flashing devices.

Protocol

eMMC devices support the org.jedec.mmc protocol.

GUID Generation

These devices use the following instance values:

  • EMMC\%NAME%
  • EMMC\%MANFID%&%OEMID%
  • EMMC\%MANFID%&%OEMID%&%NAME%

Update Behavior

The firmware is deployed when the device is in normal runtime mode, but it is only activated when the device is rebooted.

Vendor ID Security

The vendor ID is set from the EMMC vendor, for example set to EMMC:{$manfid}

External interface access

This plugin requires ioctl MMC_IOC_CMD and MMC_IOC_MULTI_CMD access.