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QNX SDP 8.0 BSP Documentation
The board support package (BSP) documentation includes user guides that describe how to work with the BSPs provided for the QNX Software Development Platform (SDP) 8.0, and release notes that describe the supported features and hardware as well as any known issues for each BSP.
Broadcom
Raspberry Pi 4 BCM2711
User's Guide
BSP-specific Drivers and Utilities
mbox-bcm2711
Mailbox utility for BCM2711 SOC

QNX SDP 8.0 BSP Documentation
The board support package (BSP) documentation includes user guides that describe how to work with the BSPs provided for the QNX Software Development Platform (SDP) 8.0, and release notes that describe the supported features and hardware as well as any known issues for each BSP.
- AMD
- Broadcom
  - Raspberry Pi 4 BCM2711
    - Release Notes
    - User's Guide
      - Before You Begin
        Before you begin working with this BSP, you should become familiar with the resources available to you.
      - About This BSP
        These notes list what's included in the BSP, and identify the host OSs and boards it supports.
      - Installation Notes
        These installation notes describe how to build, work with, and run this BSP.
      - Build the BSP
        You can use the QNX Momentics IDE or the commandline on Linux or Windows to build an image.
      - Driver Commands
        The tables below provide a summary of driver commands for the Xilinx KD240.
      - BSP-specific Drivers and Utilities
        devc-serminiuart
        Serial driver for the mini UART on the Xilinx KD240.
        devs-genet.so
        Driver for the Raspberry Pi GENET ETHERNET
        devu-hcd-bcm2711-xhci.so
        Driver for Extensible Host Controller Interface (XHCI) USB controllers on Xilinx KD240 variants
        i2c-bcm2711
        Driver for inter-integrated circuits on the Xilinx Zynq UltraScale+ MPSoC KD240 Evaluation Kit.
        spi-bcm2711
        Enhanced Serial Peripheral Interface (SPI)
        gpio-bcm2711
        GPIO utility for BCM2711 SOC
        mbox-bcm2711
        Mailbox utility for BCM2711 SOC
- Intel
- NXP
- Texas Instruments
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

mbox-bcm2711

Mailbox utility for BCM2711 SOC

Syntax:

mbox-bcm2711 [commandstring|command_id] [:|=] [parameters]

Runs on:

QNX OS

Options:

commandstring:

    clockrate
    clocks
    clockstate
    cmdline
    dmachan
    firmwarerev
    firmwarevar
    firmwarehash
    gpioconfig
    gpiostate
    macaddress
    maxclockrate
    maxtemperature
    maxvoltage
    memory
    minclockrate
    minvoltage
    model
    notifyxhcireset
    powerstate
    powertiming
    revision
    serial
    temperature
    turbo
    vcmemory
    voltage

Examples:

mbox-bcm2711 temperature
mbox-bcm2711 0x30006 [same as above]
mbox-bcm2711 clockrate:10
mbox-bcm2711 clockrate=10:100000000

Page updated: October 24, 2025