fwupd/plugins/emmc
Richard Hughes e87fc05ab9 Speed up the daemon startup by ~2% by doing dlsym much less
We were calling g_module_symbol() 2703 times, which is actually more
expensive than you'd think.

It also means the plugins are actually what we tell people they are:
A set of vfuncs that get run. The reality before that they were dlsym'd
functions that get called at pretty random times.
2021-11-09 12:02:07 +00:00
..
emmc.quirk Simplify the quirk file format 2021-03-03 08:30:34 +00:00
fu-emmc-device.c Allow using a per-device global percentage completion 2021-09-13 14:28:15 +01:00
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 Move the plugin build logic to the plugins themselves 2021-02-18 14:46:20 +00:00
README.md trivial: update markdown for pre-commit style 2021-07-18 14:42:47 -05:00

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.