e28d575668
Cross-referenced with Linux 7.1 drivers/usb/serial/ftdi_sio.c (2,876 lines). Implements the core FTDI protocol: - Reset (SIO_RESET_SIO + purge RX/TX buffers) - Baud rate setting (48MHz base clock, 16-bit divisor encoding) - Flow control (RTS/CTS, DTR/DSR) - Modem control (DTR/RTS line state) - Bidirectional bulk I/O: bulk IN → stdout, stdin → bulk OUT (spawned thread) Recipe pattern matches redbear-acmd: path dep on local forks, XhciClientHandle interface, common::setup_logging, cargo template. Wired into redbear-mini.toml (inherited by redbear-full) with probe marker service.