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v0.5.1
https://github.com/torvalds/linux
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Tip revision: 02da2d72174c61988eb4456b53f405e3ebdebce4 authored by Linus Torvalds on 24 April 2016, 23:17:05 UTC
Linux 4.6-rc5
Tip revision: 02da2d7
u_printer.h
/*
 * u_printer.h
 *
 * Utility definitions for the printer function
 *
 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef U_PRINTER_H
#define U_PRINTER_H

#include <linux/usb/composite.h>

#define PNP_STRING_LEN			1024

struct f_printer_opts {
	struct usb_function_instance	func_inst;
	int				minor;
	char				pnp_string[PNP_STRING_LEN];
	unsigned			q_len;

	/*
	 * Protect the data from concurrent access by read/write
	 * and create symlink/remove symlink
	 */
	struct mutex			lock;
	int				refcnt;
};

#endif /* U_PRINTER_H */
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