CherryUSB/class/printer/usb_printer.h

#ifndef _USB_PRINTER_H
#define _USB_PRINTER_H

#define PRINTER_SUBCLASS 0x01U

#define PRINTER_REQUEST_GET_DEVICE_ID   0x00U
#define PRINTER_REQUEST_GET_PORT_SATTUS 0x01U
#define PRINTER_REQUEST_SOFT_RESET      0x02U

#define PRINTER_STATUS_NO_ERROR    0x00U
#define PRINTER_STATUS_SELECTED    0x08U
#define PRINTER_STATUS_PAPER_EMPTY 0x10U

#endif