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fwupd/plugins/dfu
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Richard Hughes faa7871b08 Remove duplicate ->probe() calls to speed up startup by 150ms 
Now incorporate is fixed to copy across the properties we need in the
superclass, we don't need to do the subclass ->probe().

Note, we still need to do the subclassed ->probe() when using
FU_UDEV_DEVICE_FLAG_VENDOR_FROM_PARENT or when looking at properties
on the parent device.

This also removes the spurious 'already set GType to FuVliUsbhubDevice,
ignoring FuVliUsbhubDevice' messages when running the daemon.
2022-06-14 21:01:57 +01:00
..
contrib trivial: correct docstring location for a few python files 2021-04-09 16:02:20 +01:00
dfu-tool.1 trivial: fix man page sections 2022-01-04 14:17:43 -06:00
dfu.quirk [fwupd:dfu] Update dfu quirk file for SPIT pccam's chips 2022-05-12 08:36:46 +01:00
fu-dfu-common.c trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-dfu-common.h dfu: Set the DfuDevice as a proxy to the DfuTarget 2022-05-12 08:38:18 +01:00
fu-dfu-device.c Remove duplicate ->probe() calls to speed up startup by 150ms 2022-06-14 21:01:57 +01:00
fu-dfu-device.h Be smarter and include less header files per source file 2022-06-14 14:36:52 -05:00
fu-dfu-sector.c trivial: reformat the whole tree to match new format 2021-08-24 11:18:40 -05:00
fu-dfu-sector.h Be smarter and include less header files per source file 2022-06-14 14:36:52 -05:00
fu-dfu-self-test.c Split out the path helpers to a new source file 2022-06-14 14:36:52 -05:00
fu-dfu-target-avr.c Split out the dump helpers to a new source file 2022-06-14 14:36:52 -05:00
fu-dfu-target-avr.h Be smarter and include less header files per source file 2022-06-14 14:36:52 -05:00
fu-dfu-target-private.h dfu: Set the DfuDevice as a proxy to the DfuTarget 2022-05-12 08:38:18 +01:00
fu-dfu-target-stm.c Split out the GByte helpers to a new source file 2022-06-14 14:36:52 -05:00
fu-dfu-target-stm.h Be smarter and include less header files per source file 2022-06-14 14:36:52 -05:00
fu-dfu-target.c Be smarter and include less header files per source file 2022-06-14 14:36:52 -05:00
fu-dfu-target.h Be smarter and include less header files per source file 2022-06-14 14:36:52 -05:00
fu-dfu-tool.c Split out the GByte helpers to a new source file 2022-06-14 14:36:52 -05:00
fu-plugin-dfu.c Add plugin quirk keys earlier in the startup process 2022-05-09 11:13:52 +01:00
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

DFU

Introduction

Device Firmware Update is a standard that allows USB devices to be easily and safely updated by any operating system.

Firmware Format

The daemon will decompress the cabinet archive and extract a firmware blob in DFU or DfuSe file format.

This plugin supports the following protocol IDs:

  • org.usb.dfu
  • com.st.dfuse

GUID Generation

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

  • USB\VID_273F&PID_1003&REV_0001
  • USB\VID_273F&PID_1003
  • USB\VID_273F

Update Behavior

A DFU device usually presents in runtime mode (with optional DFU runtime), but on detach re-enumerates with an additional required DFU descriptor. 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, for example USB:0x0A12

Quirk Use

This plugin uses the following plugin-specific quirks:

DfuFlags

Optional quirks for a DFU device which doesn't follow the DFU 1.0 or 1.1 specification.

Since: 1.0.1

DfuForceVersion

Forces a specific DFU version for the hardware device. This is required if the device does not set, or sets incorrectly, items in the DFU functional descriptor.

Since: 1.0.1

DfuForceTimeout

Forces a specific device timeout, in ms.

Since: 1.4.0

DfuForceTransferSize

Forces a target transfer size, in bytes.

Since: 1.5.6

External Interface Access

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