#pragma once

#include <stdbool.h>

typedef void (*usb_api_line_handler_t)(const char *line);

// Initialize USB Serial/JTAG line reader; pass handler for complete lines.
void usb_api_init(usb_api_line_handler_t handler);

// Non-blocking poll; call from main loop/task.
void usb_api_tick(void);

// Send a line to host (no automatic newline added).
void usb_api_send_line(const char *line);

// Return true when host is connected over USB Serial/JTAG.
bool usb_api_is_connected(void);