Chromium OS Touch Firmware Updater

Overview

This directory contains source codes for touch firmware updates. For each touch device, we do the followings:

• Loop through all vendor scripts to find the applicable one.
• Determine current firmware status for the device.
• Update the firmware(optional).
• Display info.

Status

• Refactor platform/touch_updater
• Files having suffix legacy will be removed gradually.

Structue

• chromeos-touch-update.sh

  • Usage: ./chromeos-touch-update.sh [--info] [device ...]

• chromeos-touch-common.sh

  • Shared utilities

• chromeos-VENDOR_NAME-firmware-update.sh

  • Vendor scripts
  • Each should provide the following functions:
    • get_vendor_name()
      • Print the vendor name.
    • check_applicability(device)
      • Check if the script is applicable to the device.
    • get_active_fw_version(device)
      • Get the active firmware version of the device.
    • get_latest_fw_version(device)
      • Get the latest firmware version of the device.
    • compare_fw_versions(active, latest)
      • Determine current firmware status.
      • Returns one of:
        • UP_TO_DATE
        • OUTDATED
        • ROLLBACK
        • CORRUPTED
    • update(device)
      • Update the firmware for the device.
    • config(device)
      • Deprecated. For legacy use only.
  • Locally used helper functions must have prefix VENDOR_NAME