Driver Commands

The tables below provide a summary of driver commands for the Honeycomb LX2.

Some of the drivers are commented out in the buildfile. To use these drivers on the target hardware, you may need to uncomment them in the buildfile, rebuild the image, and then load the image onto the board.

The order that the drivers are started in the provided buildfile is one way to start them. The order that you start the drivers is completely customizable and is often specific to your system requirements. For example, if you need an audible sound to play immediately, you must start the audio driver earlier than other drivers. It's important to recognize that the order you choose impacts the boot time.

Note:
Some drivers depend on other drivers, so it's sometimes necessary to start them in a specific order.
  • For more information on best practices for building an embedded system and optimizing boot times for your system, see the Building Embedded Systems and the Boot Optimization guides in the QNX Software Development Platform 8.0 documentation.
  • For more information about the drivers and commands listed here, see the QNX OS Utilities Reference. This chapter provides information about BSP-specific options for any of the commands and drivers that aren't described in the Utilities Reference. In some cases, the driver or command is specific to this BSP, in which case, you'll find the information in the BSP-specific Drivers and Utilities chapter.
Here's the list of drivers available for this board:

AHCI SATA

Device SATA
Command devb-ahci-mx8x ahci ioport=0x3200000,irq=165 disk name=hd

devb-ahci-mx8x ahci ioport=0x3210000,irq=168 disk name=hd

devb-ahci-mx8x ahci ioport=0x3220000,irq=129 disk name=hd

devb-ahci-mx8x ahci ioport=0x3230000,irq=132 disk name=hd
Required binaries devb-ahci-mx8x
Required libraries libsecpol.so, libc.so, libgcc_s.so, cam-disk.so, libcam.so
Source location $BSP_ROOT_DIR/src/hardware/devb/ahci

For more information about the devb-ahci driver, see the devb-ahci section in the QNX OS Utilities Reference guide of the QNX Software Development Platform 8.0 documentation.

Inter-integrated Circuit (I2C)

Device I2C
Command i2c-imx -t1 -p 0x02000000 -i66 -c350000000
Required binaries i2c-imx, isendrecv, isend
Required libraries libsecpol.so, libc.so, libgcc_s.so
Source location $BSP_ROOT_DIR/src/hardware/i2c/imx

For information about this driver, see the i2c-imx section in the BSP-specific Drivers and Utilities chapter of this guide.

Network

Device Ethernet
Commands io-sock -m phy -m pci -d em -d ix -d re -m usb -d axe -d axge -d cdce -d smsc
Required binaries io-sock, if_up, dhcpcd, dhcpcd-run-hooks, ifconfig, pfctl, random
Required libraries devs-em.so, devs-ix.so, devs-re.so, devs-axe.so, devs-axge.so, devs-cdce.so, devs-smsc.so, libsocket.so, libsecpol.so, libjail.so, mods-phy.so, mods-pci.so, mods-usb.so, mods-fdt.so, mods-phy_fdt.so, libgcc_s.so.1, libc.so.6, qcrypto-openssl-3.so, libtracelog.so, libqcrypto
Source location Prebuilt only

For more information about the devs-axe.so driver, see the devs-axe.so section in the QNX OS Utilities Reference guide of the QNX Software Development Platform 8.0 documentation.

NVME

Device Non-Volatile Memory Express (NVMe)
Command devb-nvme disk name=nvme
Required binaries devb-nvme
Required libraries libcam.so, cam-disk.so, io-blk.so, fs-dos.so, fs-qnx6.so,

ldqnx-64.so.2, libc.so, libgcc_s.so, libpci.so, pci/pci_*.so,

libsecpol.so, libslog2.so, libfsnotify.so

Source location $BSP_ROOT_DIR/src/hardware/devb/nvme

For more information about the devb-nvme driver, see the devb-nvme section in the QNX OS Utilities Reference guide of the QNX Software Development Platform 8.0 documentation.

PCI Server

Device PCIe
Commands PCI_SLOG_MODULE=pci_slog2.so pci-server --config=/etc/system/config/pci/pci_server.cfg
Required binaries pci-server
Required libraries libpci.so, pci_server-buscfg-generic.so, pci_hw-nxp-QorIQ-lx2160a.so, pci_debug2.so, pci_slog2.so, pci_strings.so, pci_cap-0x10.so, pci_cap-0x11.so, pci_cap-0x05.so, pci_cap-0x01.so, libsecpol.so, libc.so, libgcc_s.so
Environment variables PCI_HW_MODULE,

PCI_HW_CONFIG_FILE,

PCI_DEBUG_MODULE,

PCI_BASE_VERBOSITY,

PCI_SLOG_MODULE

For more information about the environment, see the Environment variables section in the Overview chapter of the PCI Server User's Guide.
Source location Prebuilt only

For more information about this driver, see the pci-server section in the QNX OS Utilities Reference guide of the QNX SDP 8.0 documentation.

SD/MMC

Device microSD
Command (microSD) devb-sdmmc-ls20xx cam pnp blk rw,cache=2M sdio clk=350000000, addr=0x2140000,irq=60,bs=per_clk=700000000:clk_max=100000000 disk name=sd
Required binaries devb-sdmmc-ls20xx, fdisk, mkdosfs
Required libraries libsecpol.so
Source location $BSP_ROOT_DIR/src/hardware/devb/sdmmc
For more about this driver information, see the devb-sdmmc-* section in the Utilities Reference guide of the QNX Software Development Platform 8.0 documentation.

Serial

Device Serial
Commands

devc-serpl011 -b115200 -c174974400 -e -F -u1 0x21c0000,64
Required binaries devc-serpl011
Required libraries libsecpol.so, libc.so, libgcc_s.so
Source location $BSP_ROOT_DIR/src/hardware/devc

For more information about the serial drivers, see the devc-serpl011 section in the BSP-specific Drivers and Utilities chapter of this guide.

Startup

Device Startup
Command startup-honeycomb_lx2 -W
Required binaries startup-honeycomb_lx2
Required libraries N/A
Source location $BSP_ROOT_DIR/src/hardware/startup/boards/honeycomb_lx2

In addition to the startup-* options described in the Utilities Reference, you can also use the following option with this command:

-W
Enable watchdog timer support. Ensure that you start the watchdog driver after when you use this option.

Thermal

Device Fan Controller
Commands

honeycomb_thermal -f 200 &

Required binaries honeycomb_thermal
Required libraries libsecpol.so, libc.so, libgcc_s.so
Source location $BSP_ROOT_DIR/src/hardware/support/honeycomb/honeycomb_thermal

For more information about the serial drivers, see the honeycomb_thermal section in the BSP-specific Drivers and Utilities chapter of this guide.

USB Host Mode

Device USB OTG (Host mode)
Command io-usb-otg -d dwc3-xhci ioport=0x3100000,iosize=0x10000, irq=112,ioport=0x3110000,iosize=0x10000,irq=113
Required binaries io-usb-otg, usb, devb-umass, devb-ram
Required libraries devu-hcd-dwc3-xhci.so, libhiddi.so, libusbdi.so, libusbdci.so
Source location Prebuilt only

For more information about the io-usb-otg, see the io-usb-otg section in the QNX OS Utilities Reference guide of the QNX SDP 8.0 documentation.

For more information about the devu-hcd-dwc3-xhci.so driver, see the devu-hcd-dwc3-xhci.so section in the BSP-specific Drivers and Utilities chapter of this guide.

Watchdog

Device Watchdog timer
Commands

wdtkick -a 0x2390000 -p 253 -t 10000 -W0x00:0x1

Required binaries wdtkick
Required libraries libc.so, libgcc_s.so
Source location $BSP_ROOT_DIR/src/hardware/support/wdtkick
For more about this driver information, see the wdtkick section in the Utilities Reference guide of the QNX Software Development Platform 8.0 documentation.
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