libubootenv - Library to access U-Boot environment ================================================== [](https://travis-ci.org/sbabic/libubootenv) [](https://scan.coverity.com/projects/21387) [](https://api.reuse.software/info/github.com/sbabic/libubootenv) libubootenv is a library that provides a hardware independent way to access to U-Boot environment. U-Boot has its default environment compiled board-dependently and this means that tools to access the environment are also board specific, too. Source Code: https://github.com/sbabic/libubootenv Documentation (doxygen): https://sbabic.github.io/libubootenv Replacement old tools --------------------- Part of the library are the replacement of the "fw_printenv / fw_setenv" tools that can be used with any board - they accept as parameter a file as initial environment if none is found on the persistent storage. The syntax for the data configuration file is the same as the one described in the U-Boot project whilst the syntax of the script file is a subset of the original one. :: Usage fw_printenv [OPTION] -h, : print this help -c, --config : configuration file (by default: /etc/fw_env.config) -f, --defenv : default environment if no one found (by default: /etc/u-boot-initial-env) -V, : print version and exit -n, --no-header : do not print variable name Usage fw_setenv [OPTION] -h, : print this help -c, --config : configuration file (by default: /etc/fw_env.config) -f, --defenv : default environment if no one found (by default: /etc/u-boot-initial-env) -V, : print version and exit -s, --script : read variables to be set from a script Script Syntax: key=value lines starting with '#' are treated as comment lines without '=' are ignored Script Example: netdev=eth0 kernel_addr=400000 foo=empty empty empty empty empty empty bar License ------- libubootenv is licensed under LGPL-2.1 OE / Yocto support ------------------ Recipe is provided in openembedded-core layer https://git.openembedded.org/openembedded-core/tree/meta/recipes-bsp/u-boot/ Buildroot support ----------------- Package is provided in https://git.buildroot.net/buildroot/tree/package/libubootenv Contributing to the project --------------------------- Contributions are welcome ! You can submit your patches (or post questions regarding the project) to the swupdate Mailing List: swupdate@googlegroups.com Please read the [contributing](http://sbabic.github.io/swupdate/contributing.html) chapter in the documentation how to contribute to the project.