usb_hid.h

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// USB HID Module - Composite Device
// CDC + optional HID/CCID interfaces registered by modules
//
// Interface descriptor types (UsbInterfaceClass, UsbHidCallbacks, UsbInterfaceDef)
// are defined once in cdc_core/UsbManager.h and re-exported here as global aliases
// for the legacy C-style apply API.
 
#pragma once
 
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
 
#ifdef __cplusplus
#include "cdc_core/UsbManager.h"
 
// Re-export the canonical types from cdc::core into the global namespace so that
// the runtime apply API can keep using unqualified type names without enforcing
// the namespace on existing call sites.
using UsbInterfaceClass = cdc::core::UsbInterfaceClass;
using UsbHidCallbacks = cdc::core::UsbHidCallbacks;
using UsbInterfaceDef = cdc::core::UsbInterfaceSpec;
 
extern "C" {
#endif
 
// Initialize HID-related resources (if any).
// TinyUSB init is performed by usb_cdc_init().
bool usb_hid_init(void);
 
// Apply active interface list (ordered). Attempts soft reconnect; sets needs_replug
// if host may require replug.
bool usb_hid_apply_config(const UsbInterfaceDef* defs, size_t count, bool* needs_replug);
 
// Check if USB is ready (CDC or HID).
bool usb_hid_ready(void);
 
// Per-instance HID helpers (instance is 0..n-1 in registration order)
bool usb_hid_instance_ready(uint8_t instance);
bool usb_hid_send_report(uint8_t instance, uint8_t report_id, const uint8_t* data, uint16_t len);
 
#ifdef __cplusplus
}
#endif