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fwupd/plugins/ebitdo
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Mario Limonciello 661990ed98 Convert build system to use meson tristate features 
tristate features will automatically disable if dependencies marked
as required are missing.

Packagers can manually override using `auto_features`.

Link: https://mesonbuild.com/Build-options.html#features
2022-02-28 08:34:48 -06:00
..
data Updated: Add support for 8BitDo M30. 2019-04-09 12:38:24 -04:00
tests Move the fuzzing files into the plugin directories 2021-10-22 15:24:05 +01:00
ebitdo-legacy.quirk trivial: Do not match the legacy bootloader VID/PID 2022-01-17 15:41:04 +00:00
ebitdo.quirk trivial: Do not match the legacy bootloader VID/PID 2022-01-17 15:41:04 +00:00
fu-ebitdo-common.c trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-ebitdo-common.h trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-ebitdo-device.c Add a flag to indicate the device is signed or unsigned 2022-02-22 19:12:06 +00:00
fu-ebitdo-device.h trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-ebitdo-firmware.c Allow patching firmware files at known offsets 2022-01-05 09:51:45 +00:00
fu-ebitdo-firmware.h trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-plugin-ebitdo.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

8BitDo

Introduction

This plugin can flash the firmware on the 8BitDo game pads.

Ebitdo support is supported directly by this project with the embedded libebitdo library and is possible thanks to the vendor open sourcing the flashing tool.

The 8BitDo devices share legacy USB VID/PIDs with other projects and so we have to be a bit careful to not claim other devices as our own.

Firmware Format

The daemon will decompress the cabinet archive and extract a firmware blob in an unspecified binary file format. The binary file has a vendor-specific header that is used when flashing the image.

This plugin supports the following protocol ID:

  • com.8bitdo

GUID Generation

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

  • USB\VID_2DC8&PID_AB11&REV_0001
  • USB\VID_2DC8&PID_AB11
  • USB\VID_2DC8

Update Behavior

The device usually presents in runtime mode, but on detach re-enumerates with a different USB VID and PID in a bootloader mode. On attach the device again re-enumerates back to the runtime mode.

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.

Vendor ID Security

The vendor ID is set from the USB vendor, which is set to various different values depending on the model and device mode. The list of USB VIDs used is:

  • USB:0x2DC8
  • USB:0x0483
  • USB:0x1002
  • USB:0x1235
  • USB:0x2002
  • USB:0x8000

External Interface Access

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