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fwupd/plugins/emmc
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Richard Hughes c4ca026294 Allow devices to build instance IDs more easily 
Provide a device instance builder that allows plugins to easily
create multiple instance IDs based on parent attributes.

Also fix a lot of the instance ID orders, so that we add more generic
IDs first, and more specific IDs after.
2022-03-03 09:13:29 +00:00
..
emmc.quirk Simplify the quirk file format 2021-03-03 08:30:34 +00:00
fu-emmc-device.c Allow devices to build instance IDs more easily 2022-03-03 09:13:29 +00:00
fu-emmc-device.h trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-plugin-emmc.c Speed up the daemon startup by ~2% by doing dlsym much less 2021-11-09 12:02:07 +00:00
meson.build Convert build system to use meson tristate features 2022-02-28 08:34:48 -06:00
README.md trivial: update markdown for pre-commit style 2021-07-18 14:42:47 -05:00

README.md

eMMC

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.