/usr/include/linux/usb/g_printer.h is in linux-libc-dev 4.9.144-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | /*
* 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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