#ifndef USB_CORE_H_YIKJDA7S1X__ #define USB_CORE_H_YIKJDA7S1X__ #include struct USB_request_st usb_setup_buffer; void usb_send_ctrl_response(const uint8_t *data, unsigned int len); void usb_error_stall(); void usb_send_ctrl_status(); typedef void (*usb_ctrl_data_callback)(uint8_t *data, unsigned int length); void usb_get_ctrl_data(uint8_t *data, unsigned int length, usb_ctrl_data_callback cb); #endif /* USB_CORE_H_YIKJDA7S1X__ */