Edit: g_printer.h
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * g_printer.h -- Header file for USB Printer gadget driver * * Copyright (C) 2007 Craig W. Nadler * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __LINUX_USB_G_PRINTER_H #define __LINUX_USB_G_PRINTER_H #define PRINTER_NOT_ERROR 0x08 #define PRINTER_SELECTED 0x10 #define PRINTER_PAPER_EMPTY 0x20 /* The 'g' code is also used by gadgetfs ioctl requests. * Don't add any colliding codes to either driver, and keep * them in unique ranges (size 0x20 for now). */ #define GADGET_GET_PRINTER_STATUS _IOR('g', 0x21, unsigned char) #define GADGET_SET_PRINTER_STATUS _IOWR('g', 0x22, unsigned char) #endif /* __LINUX_USB_G_PRINTER_H */
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