fwupd/plugins/emmc
Richard Hughes b333e0045c Split out a shared system context
There is a lot of code in fwupd that just assigns a shared object type to
a FuPlugin, and then for each device on that plugin assigns that same shared
object to each FuDevice.

Rather than proxy several kinds of information stores over two different levels
of abstraction create a 'context' which contains the shared *system* state
between the daemon, the plugins and the daemon.

This will allow us to hold other per-machine state in the future, for instance
the system battery level or AC state.
2021-04-01 21:11:29 +01:00
..
emmc.quirk Simplify the quirk file format 2021-03-03 08:30:34 +00:00
fu-emmc-device.c Remove FuFirmwareImage and just use FuFirmware instead 2021-03-09 21:14:12 +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 Split out a shared system context 2021-04-01 21:11:29 +01:00
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

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.