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v0.5.1
https://github.com/torvalds/linux
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Tip revision: a38fd8748464831584a19438cbb3082b5a2dab15 authored by Linus Torvalds on 06 March 2021, 01:33:41 UTC
Linux 5.12-rc2
Tip revision: a38fd87
u_printer.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * u_printer.h
 *
 * Utility definitions for the printer function
 *
 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
 */

#ifndef U_PRINTER_H
#define U_PRINTER_H

#include <linux/usb/composite.h>

struct f_printer_opts {
	struct usb_function_instance	func_inst;
	int				minor;
	char				*pnp_string;
	bool				pnp_string_allocated;
	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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