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fwupd/plugins/superio
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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
..
fu-plugin-superio.c Use FWUPD_COMPILATION define to indicate an in tree build 2021-01-22 14:01:25 -06:00
fu-superio-common.c Move the file descriptor lifecycle into FuUdevDevice 2019-10-31 09:21:35 -05:00
fu-superio-common.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-superio-device.c Support more than one protocol for a given device 2021-03-01 16:14:36 +00:00
fu-superio-device.h superio: Simplify device setup using the parent_class 2021-02-26 18:46:51 +00:00
fu-superio-it85-device.c superio: Simplify device setup using the parent_class 2021-02-26 18:46:51 +00:00
fu-superio-it85-device.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-superio-it89-device.c superio: Simplify device setup using the parent_class 2021-02-26 18:46:51 +00:00
fu-superio-it89-device.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
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
superio.quirk Adjusted superio L4 quirk 2021-02-15 22:24:40 +00:00

README.md

SuperIO

This plugin enumerates the various ITE85* SuperIO embedded controller ICs found in many laptops. Vendors wanting to expose the SuperIO functionality will need to add a HwId quirk entry to superio.quirk.

See https://en.wikipedia.org/wiki/Super_I/O for more details about SuperIO and what the EC actually does.

Other useful links:

GUID Generation

These devices use a custom GUID generated using the SuperIO chipset name:

  • SuperIO-$(chipset), for example SuperIO-IT8512

Update Behavior

The firmware is deployed when the device is in normal runtime mode, but it is only activated on machine reboot. The firware write is normally scheduled to be done very early in the boot process to minimize the chance the EC chip locking up if the user is actually using the kerboard controller.

Vendor ID Security

The vendor ID is set from the baseboard vendor, for example DMI:Star Labs

External interface access

This plugin requires access to raw system memory via inb/outb.