USB HID + CDC-ACM Stack — v1.0.0

USB HID + CDC-ACM Stack v1.0.0

First stable release of the deterministic host-testable USB HID + CDC-ACM composite device stack.

Highlights

• Portable C11 implementation
• USB device state machine
• EP0 control-transfer handling
• HID keyboard-style reports
• CDC-ACM control requests
• Composite USB descriptors
• Virtual USB host/bus simulation
• Unit, integration, and negative tests
• CMake/CTest build system
• GitHub Actions CI
• Host-side Python validation utilities

Verification

15/15 CTest tests passing.

The project is intentionally scoped to protocol and class simulation and does not claim physical USB electrical or USB-IF compliance testing.