KeyBoard_QT/docs/host_dri_rebuild.md

Host DRI Rebuild

Goal

Keep the device runtime layer small and transport-only.

The DRI layer should:

• enumerate endpoints
• open and close connections
• read raw bytes
• write raw bytes

The DRI layer should not:

• parse frames
• manage protocol state
• decide handshake success

Completed Nodes

Node 1: GATT placeholder

Files:

• KeyBorad/KeyBorad/DRI/GATT/Dri_Gatt.h
• KeyBorad/KeyBorad/DRI/GATT/Dri_Gatt.cpp

Design notes:

• reserves the BLE transport position early
• keeps the implementation small for now
• avoids mixing GATT transport with logic concerns

Node 2: CDC transport cleanup

Files updated in this step:

• KeyBorad/KeyBorad/DRI/Dri_Cdc.h
• KeyBorad/KeyBorad/DRI/Dri_Cdc.cpp

Design notes:

• remove frame parsing from the driver
• remove handshake ownership from the driver
• keep only enumerate/open/close/read-bytes/write-bytes

Implemented behavior:

• list ports with Dri_Cdc_Enum()
• open one port with Dri_Cdc_Open()
• close one port with Dri_Cdc_Close()
• read raw bytes with timeout
• write raw bytes with timeout

Next DRI nodes

• implement real GATT discovery and notify/write path
• provide one simple connection summary for logic layer