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Latest commit

fixes 8a520d4 usbhotplug: avoid code duplication and make it thread save

Signed-off-by: Frank Li <>

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uuu (Universal Update Utility), mfgtools 3.0

Build status

macOS Build Build with VS Studio Build for x64 ubuntu-lastest



Freescale/NXP I.MX Chip image deploy tools. original linux version uses "linux" branch, windows version uses "windows" branch

uuu (universal update utility) for nxp imx chips -- libuuu-1.0.1-gffd9837

Succeded:0       Failed:3               Wait for Known USB Devices to Appear...

1:11     5/5 [                                        ] SDP: jump -f u-boot-dtb.imx -ivtinitramf....
2:1      1/5 [===>                                    ] SDP: boot -f u-boot-imx7dsabresd_sd.imx ....

Key features

  • The real cross platform. Linux, Windows, MacOS(not test yet)
  • Multi devices program support
  • Daemon mode support
  • Few dependencies (only libusb, zlibc, libbz2)
  • Firmware (uboot/kernel) uses WCID to auto load the winusb driver on the Windows side. Windows7 users need to install the winusb driver from Windows10 will install the driver automatically.


  uuu u-boot.imx            Download u-boot.imx via HID device

  uuu list.uu               Run all the commands in list.uu

  uuu -s                    Enter shell mode. Input command.

  uuu -v u-boot.imx         verbose mode

  uuu -d u-boot.imx         Once it detects the attachment of a known device, download boot.imx.

                            u-boot.imx can be replaced, new file will be download once board reset.

                            Do not unplug the SD card, write to the SD card, nor plug in a SD card when debugging uboot.

  uuu -b emmc u-boot.imx    write u-boot.imx to emmc boot partition. u-boot.imx need enable fastboot

  uuu -b emmc_all u-boot.imx sdcard.bz2\*
                            decompress sdcard.bz2 file and download the whole image into emmc

Prebuilt Image and pdf document

The prebuilt image and document are here:

How to Build:


  • git clone --recurse-submodules
  • cd mfgtools
  • open msvs/uuu.sln with Visual Studio 2017

Visual Studio

Note that, since uuu is an OSI compliant Open Source project, you are entitled to download and use the freely available Visual Studio Community Edition to build, run or develop for uuu. As per the Visual Studio Community Edition license this applies regardless of whether you are an individual or a corporate user.


  • git clone
  • cd mfgtools
  • sudo apt-get install libusb-1.0-0-dev libbz2-dev libzstd-dev pkg-config cmake libssl-dev g++ zlib1g-dev
  • cmake . && make

The above commands build mfgtools in source. To build it out of source (requires cmake 3.13 or newer):

  • cmake -S . -B build
  • cmake --build build --target all

For cmake prior 3.13:

  • mkdir build && cd build
  • cmake .. && make


  • git clone
  • cd mfgtools
  • brew install cmake libusb openssl pkg-config
  • cmake -DOPENSSL_ROOT_DIR=$(brew --prefix)/opt/openssl . && make

Note that we assume brew is installed and can be used to resolve dependencies as shown above. The remaining dependency libbz2 can be resolved via the XCode supplied libraries.

Note if you meet "can't detach kernel driver" try to check libusb version.

brew info libusb
==> libusb: stable 1.0.26 (bottled), HEAD

Run environment

  • Windows 10 64 bit
  • Linux (Ubuntu) 64 bit
  • macOS (Catalina)
  • 32 bit systems will have problems with big files.


uuu is licensed under the BSD license. See LICENSE. The BSD licensed prebuilt Windows binary version of uuu is statically linked with the LGPL libusb library, which remains LGPL.