Documentation

Developer guide

• 21.02: Major cosmetic changes
• Adding a new device
• Adding new device support
• Adding new elements to LuCI
• Adding new platform support
• Building image with support for 3g/4g and usb tethering
• Building MPD-full with PulseAudio
• Building OpenWrt for Netgear WNDR3700
• Building OpenWrt Kernel for Debian System
• Configuration in scripts
• Create a Cmake package in OpenWrt
• Create a sample procd init script
• Create Meson-based packages in OpenWrt
• Creating packages
• Debugging
• Device support policies / best practices
• Device Support: MAC address setup
• Device Tree Usage in OpenWrt (DTS)
• Drivers
• embedding-files-in-image
• External Toolchain
• Frequent PR mistakes or "How to prevent my PR from getting delayed for sure"
• GNU Debugger
• Hardware Hacking First Steps
• High-level security incident response handling process
• Image Builder frontends
• iwinfo
• jshn: a JSON parsing and generation library in for shell scripts
• Links to Libraries
• MPD-full building from source
• Multicast DNS Daemon
• netifid
• network
• Network scripts
• OpenWrt Feeds
• OpenWrt on UEFI based x86 systems
• OpenWrt packages
• OpenWrt SELinux policy development, customization, and testing
• Overriding Build Options
• Overview
• procd
• procd init scripts
• RPC daemon
• Security
• Sending patches by git send-email
• Setting up a build VM in VirtualBox
• uBus IPC/RPC System
• UCI defaults
• Using Dependencies
• Using the SDK
• Working with GitHub
• Write shell scripts in OpenWrt

"Hello, world!" for OpenWrt

• Building, deploying and testing your application

...

• Creating a package from your application
• Creating a simple “Hello, world!” application
• Including your package feed into OpenWrt build system
• Migrating to use GNU make in your application
• Patching your application: Adding new files
• Patching your application: Editing existing files
• Preparing your OpenWrt build system for use

Networking

• Datagram Structures
• Linux network interfaces
• Networking in the Linux Kernel
• Theory

Making OpenWrt releases

• High-level release process
• How to create a major release
• How to create a service release
• How to prepare buildbot for major release
• Prepare Nitrokey 3A Mini for build artifact signing
• Update package lists
• Update wikidata

Release goals

• 20.xx
• Release goals for 19.07.4
• Release goals for 21.XX
• Release goals for 22.03
• Release goals for 23.xx
• Roadmap and Release Goals for 21.02

• Security

The OpenWrt source code

• Revision number calculation

Toolchain

• Build system essentials
• Build system setup
• Build system setup macOS
• Build system setup WSL
• Build system usage
• Building a single package
• Building OpenWrt ON OpenWrt
• Cross compiling
• Quick image building guide
• Using build environments
• Using the SDK
• Working with patches

• ubus file
• ubus iwinfo
• ubus network
• ubus service
• ubus session
• ubus system
• ubus uci

Documentation

Technical Reference

• BCM63xx Firmware Image Information
• Boot/Init Requirements
• BusyBox
• DFS
• EasyCwmp (CPE WAN Management Protocol daemon)
• External Documentation
• Filesystems
• Flash memory
• Hotplug -- Legacy
• Image formats
• image/Makefile Details
• Init (User space boot) reference for Chaos Calmer: procd
• Init Scripts
• Internal Layout D-Link DIR-825
• libnl and libnl-tiny – Technical Reference
• libubox
• lldpd
• LuCI – Technical Reference
• LuCI2 (OpenWrt web user interface)
• mountd – Technical Reference
• Mounting Block Devices
• MTD
• netifd (Network Interface Daemon) – Technical Reference
• Network Filesystems
• odhcp6c
• odhcpd
• OpenWrt Buildroot – Technical Reference
• OpenWrt File System Hierarchy / Memory Usage
• OpenWrt – operating system architecture
• Preinit and Root Mount and Firstboot Scripts
• Procd system init and daemon management
• rpcd: OpenWrt ubus RPC daemon for backend server
• swconfig
• Sysupgrade – Technical Reference
• The Boot Process
• The Bootloader
• The OpenWrt Flash Layout
• TRX vs. TRX2 vs. BIN
• ubox
• ubus (OpenWrt micro bus architecture)
• UCI (Unified Configuration Interface) – Technical Reference
• unetd
• Wireless Modes
• Wireless Standards
• Xenomai - real-time framework inside OpenWrt

• ADAM2
• ARMBoot
• Breed
• brnboot
• CFE
• Das U-Boot
• Das U-Boot Environment
• EVA
• kboot
• kwboot
• MyLoader
• pepe2k-u-boot_mod
• PP Boot
• PSPBoot
• RealTek
• RedBoot
• RouterBOOT
• YAMON

• Changing CFE defaults

WLAN drivers

• ath10k
• ath10k-ct
• ath10k-ct-smallbuffers
• ath11k
• ath5k
• ath9k
• b43
• b43 legacy
• brcmfmac
• brcmsmac
• mt76
• mwlwifi
• none
• rt2500pci
• rt2800pci
• rt2800usb
• rtl819x
• Unknown Wi-Fi driver

Hardware

• Antennas
• Buffered Cable, Wiggler
• Cryptographic Hardware Accelerators
• Ethernet Network Switch
• GPIO
• Hardware Ports
• I2C
• Index of hardware pages
• Integrated Circuit
• Internet access technologies
• JTAG
• JTAG Cables
• JTAG utilization
• Mobile Wireless
• OpenWrt Hardware List
• Performance
• Serial Cables
• Serial Console
• SoC (System on a Chip)
• Soldering
• The CPU (Intellectual property core)

...

• Unbuffered Cable, Xilinx DLC5 Cable III
• xDSL (Digital subscriber line)

• 1-wire Bus

• Allwinner D1 (sun20i)
• Allwinner Sun4i/5i/6i/7i/9i (sunxi)
• AR7 SoCs
• Broadcom BCM33xx
• Broadcom BCM47xx
• Broadcom BCM53xx
• Broadcom BCM63xx
• Freescale i.MX
• Freescale MPC
• Hisilicon hi35xx
• Lantiq SoCs
• Marvell Technology Group SoCs
• MediaTek / Ralink
• MediaTek-Ralink ramips
• oxnas
• Qualcomm Atheros
• Qualcomm Atheros AR5xxx (atheros)
• Qualcomm Atheros AR7xxx, AR9xxx and QCA9xxx boards
• Realtek
• SiFive RISC-V SoCs
• SoC (Sytem on Chip)
• StarFive RISC-V SoCs

• OpenWrt image conversion

• BCM6348 GPIO pinmux
• SMP/CMT Broadcom 63xx

• IVG-HP203Y-AY

• Atheros Switches

Targets

• adm5120
• adm8668
• apm821xx
• ar7
• ar71xx
• ar71xx-ath79
• at91
• ath25
• ath79
• atheros
• au1000
• avr32
• bcm27xx
• bcm47xx
• bcm4908
• bcm53xx
• bcm63xx
• bmips
• brcm-2.4
• brcm2708
• brcm47xx
• brcm63xx
• cns21xx
• cns3xxx
• cobalt
• d1
• ep93xx
• gemini
• imx
• imx6
• iop32x
• ipq40xx
• ipq806x
• ixp4xx
• Kernel versions
• kirkwood
• lantiq
• layerscape
• loongarch64
• magicbox
• malta
• mcs814x
• mediatek
• mpc85xx
• mvebu
• mxs
• octeon
• octeontx
• omap
• orion
• oxnas
• pistachio
• ppc40x
• ppc44x
• ps3
• pxa
• qualcommax/ipq807x
• ramips
• rb532
• rdc
• realtek
• realview
• rockchip
• Samsung
• sibyte
• sifiveu
• starfive
• sunxi
• tegra
• uml
• x86
• xburst
• zynq