fwupd/plugins/fastboot
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
..
data Add a plugin to update hardware that supports fastboot 2018-12-03 15:50:38 +00:00
fastboot.quirk Add a plugin to update hardware that supports fastboot 2018-12-03 15:50:38 +00:00
fu-fastboot-device.c Support more than one protocol for a given device 2021-03-01 16:14:36 +00:00
fu-fastboot-device.h trivial: Remove G_BEGIN_DECLS from all private headers 2019-10-09 20:02:16 +01:00
fu-plugin-fastboot.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

Fastboot Support

Introduction

This plugin is used to update hardware that uses the fastboot protocol.

Firmware Format

The daemon will decompress the cabinet archive and extract a firmware blob in ZIP file format. Inside the zip file must be all the firmware images for each partition and a manifest file. The partition images can be in any format, but the manifest must be either an Android flashfile.xml format file, or a QFIL partition_nand.xml format file.

For both types, all partitions with a defined image found in the zip file will be updated.

This plugin supports the following protocol ID:

  • com.google.fastboot

GUID Generation

These devices use the standard USB DeviceInstanceId values, e.g.

  • USB\VID_18D1&PID_4EE0&REV_0001
  • USB\VID_18D1&PID_4EE0
  • USB\VID_18D1

Update Behavior

A fastboot device usually presents in runtime mode (or with no interface), but if the user puts the device into fastboot mode using a physical button it then enumerates with a USB descriptor. On attach the device reboots to runtime mode which may mean the device "goes away".

For this reason the REPLUG_MATCH_GUID internal device flag is used so that the bootloader and runtime modes are treated as the same device.

Quirk use

This plugin uses the following plugin-specific quirk:

Quirk Description Minimum fwupd version
FastbootBlockSize Block size to use for transfers 1.2.2

Vendor ID Security

The vendor ID is set from the USB vendor, for example USB:0x18D1

External interface access

This plugin requires read/write access to /dev/bus/usb.