1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * u_printer.h |
4 | * |
5 | * Utility definitions for the printer function |
6 | * |
7 | * Copyright (c) 2015 Samsung Electronics Co., Ltd. |
8 | * http://www.samsung.com |
9 | * |
10 | * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> |
11 | */ |
12 | |
13 | #ifndef U_PRINTER_H |
14 | #define U_PRINTER_H |
15 | |
16 | #include <linux/usb/composite.h> |
17 | |
18 | struct f_printer_opts { |
19 | struct usb_function_instance func_inst; |
20 | int minor; |
21 | char *pnp_string; |
22 | bool pnp_string_allocated; |
23 | unsigned q_len; |
24 | |
25 | /* |
26 | * Protect the data from concurrent access by read/write |
27 | * and create symlink/remove symlink |
28 | */ |
29 | struct mutex lock; |
30 | int refcnt; |
31 | }; |
32 | |
33 | #endif /* U_PRINTER_H */ |
34 | |