I have successfully completed all pending work in the wpanusb_bc firmware repository. Here's a comprehensive summary of what was implemented:

✅ COMPLETED IMPLEMENTATIONS

1. Added Missing Command Structures (wpanusb.h)

• Added 5 new capability discovery commands to enum wpanusb_requests
• Added struct set_lbt for Listen Before Talk functionality
• Added comprehensive capability structures:
  • struct device_info - Device version and type information
  • struct hardware_caps - Hardware feature flags and limits
  • struct phy_caps - PHY layer capabilities and ranges
  • struct power_levels - Dynamic power level discovery
  • struct channel_page & struct channel_pages - Channel page information

1. Implemented All Missing Handler Functions

Capability Discovery Handlers:

• get_device_info() - Returns firmware version 1.0, protocol 1.0
• get_hardware_caps() - Reports supported HW flags, frame retries, LBT, CCA modes
• get_phy_caps() - Reports PHY flags, supported pages, CCA ED levels, CSMA ranges
• get_power_levels() - Returns 10 power levels from +5dBm to -20dBm with defaults
• get_channel_pages() - Reports dual-band support (Page 0: 2.4GHz, Page 2: Sub-GHz)

Enhanced Existing Handlers:

• get_extended_addr() - Hardware-aware: Reads from CC1352P7 FCFG registers or generates from device ID
• get_supported_channels() - Dynamic: Builds channel mask based on available radios instead of hardcoded values
• set_lbt() - Complete implementation: Validates parameters, stores configuration with 5ms max duration

Improved Configuration Handlers:

• set_csma_params() - Enhanced with standard Zephyr API integration and CC13xx/CC26xx specific handling
• All handlers include comprehensive parameter validation and error handling