1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.
2
3 file: uapi/v4l/keytable.c
4 =========================
5
6 .. code-block:: c
7
8 /* keytable.c - This program allows checki
9
10 Copyright (C) 2006-2009 Mauro Carvalho <
11
12 This program is free software; you can
13 it under the terms of the GNU General P
14 the Free Software Foundation, version 2
15
16 This program is distributed in the hope
17 but WITHOUT ANY WARRANTY; without even
18 MERCHANTABILITY or FITNESS FOR A PARTIC
19 GNU General Public License for more det
20 */
21
22 #include <ctype.h>
23 #include <errno.h>
24 #include <fcntl.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <linux/input.h>
29 #include <sys/ioctl.h>
30
31 #include "parse.h"
32
33 void prtcode (int *codes)
34 {
35 struct parse_key *p;
36
37 for (p=keynames;p->name!=NULL;p++)
38 if (p->value == (unsigned)
39 printf("scancode 0
40 return;
41 }
42 }
43
44 if (isprint (codes[1]))
45 printf("scancode %d = '%c'
46 else
47 printf("scancode %d = 0x%0
48 }
49
50 int parse_code(char *string)
51 {
52 struct parse_key *p;
53
54 for (p=keynames;p->name!=NULL;p++)
55 if (!strcasecmp(p->name, s
56 return p->value;
57 }
58 }
59 return -1;
60 }
61
62 int main (int argc, char *argv[])
63 {
64 int fd;
65 unsigned int i, j;
66 int codes[2];
67
68 if (argc<2 || argc>4) {
69 printf ("usage: %s <device
70 " %s <device
71 " %s <device
72 return -1;
73 }
74
75 if ((fd = open(argv[1], O_RDONLY))
76 perror("Couldn't open inpu
77 return(-1);
78 }
79
80 if (argc==4) {
81 int value;
82
83 value=parse_code(argv[3]);
84
85 if (value==-1) {
86 value = strtol(arg
87 if (errno)
88 perror("va
89 }
90
91 codes [0] = (unsigned) str
92 codes [1] = (unsigned) val
93
94 if(ioctl(fd, EVIOCSKEYCODE
95 perror ("EVIOCSKEY
96
97 if(ioctl(fd, EVIOCGKEYCODE
98 prtcode(codes);
99 return 0;
100 }
101
102 if (argc==3) {
103 FILE *fin;
104 int value;
105 char *scancode, *keycode,
106
107 fin=fopen(argv[2],"r");
108 if (fin==NULL) {
109 perror ("opening k
110 return -1;
111 }
112
113 /* Clears old table */
114 for (j = 0; j < 256; j++)
115 for (i = 0; i < 25
116 codes[0] =
117 codes[1] =
118 ioctl(fd,
119 }
120 }
121
122 while (fgets(s,sizeof(s),f
123 scancode=strtok(s,
124 if (!scancode) {
125 perror ("p
126 return -1;
127 }
128 if (!strcasecmp(sc
129 scancode =
130 if (!scanc
131 pe
132 re
133 }
134 }
135
136 keycode=strtok(NUL
137 if (!keycode) {
138 perror ("p
139 return -1;
140 }
141
142 // printf ("parsin
143 value=parse_code(k
144 // printf ("\\tval
145
146 if (value==-1) {
147 value = st
148 if (errno)
149 pe
150 }
151
152 codes [0] = (unsig
153 codes [1] = (unsig
154
155 // printf("\\t%04x
156 if(ioctl(fd, EVIOC
157 fprintf(st
158 perror ("E
159 }
160
161 if(ioctl(fd, EVIOC
162 prtcode(co
163 }
164 return 0;
165 }
166
167 /* Get scancode table */
168 for (j = 0; j < 256; j++) {
169 for (i = 0; i < 256; i++)
170 codes[0] = (j << 8
171 if (!ioctl(fd, EVI
172 prtcode(co
173 }
174 }
175 return 0;
176 }
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