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Linux Software Release History and Supported Features

Linux release v1.1 - April 24, 2020

Linux SW release - minor update

  • OS Distribution: Linux Yocto Rocko 2.4.3
  • Linux kernel version: 4.9.103
  • CAF Tag: LE.UM.2.3.7-13800-sda845.0

Supports all features of the v1.0 release, as well as the following new features, fixes, and performance improvements:

  • Added support for ST Micro STEVAL-MKI128V7 sensor board
  • Updated Wi-Fi board data file after calibration
  • Battery current sense configuration changed for more accurate battery fuel gauge and charging
  • Low power suspend-resume fixed to enable full low power suspend.

Linux release v1.0 - Jan. 6, 2020

Linux SW release - minor update with source release

  • OS Distribution: Linux Yocto Rocko 2.4.3
  • Linux kernel version: 4.9.103
  • CAF Tag: LE.UM.2.3.7-13800-sda845.0

Supports all features of the v0.9 release, as well as the following new features, fixes, and performance improvements:

  • Reduced boot time
  • Additional GPIO/QUP interfaces are unlocked from trustzone for easier customer access
  • Supports audio input and output through audio expansion headers
  • Bluetooth device address issue fixed
  • Supports pressure sensor on STMicro V6 sensor board
  • Supports mini PCIe Ethernet card - Realtek R8169.

Known Issues

  • No Linux UI support
  • Touch Screen is not supported
  • Camera preview is not available during still image capture and video recording
  • Camera CAM4 interface is not supported
  • Low power suspend/resume is not supported.

Linux release v0.9 - Dec. 2, 2019

Initial Linux SW release for the Open-Q 845 µSOM.

  • Binary-only initial release
  • OS Distribution: Linux Yocto Rocko 2.4.3
  • Linux kernel version: 4.9.103
  • CAF Tag: LE.UM.2.3.7-13800-sda845.0

Supported Features

  • Bootloader, Fastboot, ADB utilities
  • USB Device support for ADB interface
  • Debug UART interface via USB serial port
  • Command line console on either ADB or debug UART
  • USB Host support for mass storage
  • microSD card as file storage
  • WIFI support
    • Standard mode
    • AP mode
  • Bluetooth support
    • A2DP
    • Basic battery operation and fuel gauge
    • Status: Charging/Discharging/Full
    • Current capacity in %
    • Charger type recognitions (Power charge/quick charge/wall charge/USB charge)
  • STMicro STEVAL-MKI128V6 sensor board
    • Accelerometer
    • Gyroscope
    • Magnetometer
  • LED for boot and run indication
  • Audio record and playback through headset jack.

Known Issues

  • No display, no graphical UI support
  • Touch screen is not supported
  • Camera preview is not available during still image capture and video recording (no display)
  • Audio supports headset jack only
  • Fourth camera interface (CAM4) is not supported
  • Suspend/Resume is not supported
  • Bluetooth only supports A2DP profile
  • Pressure, Humidity and Temperature sensors on ST Micro sensor board are not supported
  • Volume up and volume down buttons are not linked to audio level
  • PCIe card is not supported
  • BT MAC address sometimes changes on reboots.