1 /* 1 /*
2 * Created by: Jason Wessel <jason.wessel@wind 2 * Created by: Jason Wessel <jason.wessel@windriver.com>
3 * 3 *
4 * Copyright (c) 2010 Wind River Systems, Inc. 4 * Copyright (c) 2010 Wind River Systems, Inc. All Rights Reserved.
5 * 5 *
6 * This file is licensed under the terms of th 6 * This file is licensed under the terms of the GNU General Public
7 * License version 2. This program is licensed 7 * License version 2. This program is licensed "as is" without any
8 * warranty of any kind, whether express or im 8 * warranty of any kind, whether express or implied.
9 */ 9 */
10 10
11 #include <linux/module.h> 11 #include <linux/module.h>
12 #include <linux/kdb.h> 12 #include <linux/kdb.h>
13 13
14 /* 14 /*
15 * All kdb shell command call backs receive ar 15 * All kdb shell command call backs receive argc and argv, where
16 * argv[0] is the command the end user typed 16 * argv[0] is the command the end user typed
17 */ 17 */
18 static int kdb_hello_cmd(int argc, const char 18 static int kdb_hello_cmd(int argc, const char **argv)
19 { 19 {
20 if (argc > 1) 20 if (argc > 1)
21 return KDB_ARGCOUNT; 21 return KDB_ARGCOUNT;
22 22
23 if (argc) 23 if (argc)
24 kdb_printf("Hello %s.\n", argv 24 kdb_printf("Hello %s.\n", argv[1]);
25 else 25 else
26 kdb_printf("Hello world!\n"); 26 kdb_printf("Hello world!\n");
27 27
28 return 0; 28 return 0;
29 } 29 }
30 30
31 static kdbtab_t hello_cmd = { <<
32 .name = "hello", <<
33 .func = kdb_hello_cmd, <<
34 .usage = "[string]", <<
35 .help = "Say Hello World or Hello [str <<
36 }; <<
37 31
38 static int __init kdb_hello_cmd_init(void) 32 static int __init kdb_hello_cmd_init(void)
39 { 33 {
40 /* 34 /*
41 * Registration of a dynamically added 35 * Registration of a dynamically added kdb command is done with
42 * kdb_register(). !! 36 * kdb_register() with the arguments being:
>> 37 * 1: The name of the shell command
>> 38 * 2: The function that processes the command
>> 39 * 3: Description of the usage of any arguments
>> 40 * 4: Descriptive text when you run help
>> 41 * 5: Number of characters to complete the command
>> 42 * 0 == type the whole command
>> 43 * 1 == match both "g" and "go" for example
43 */ 44 */
44 kdb_register(&hello_cmd); !! 45 kdb_register("hello", kdb_hello_cmd, "[string]",
>> 46 "Say Hello World or Hello [string]", 0);
45 return 0; 47 return 0;
46 } 48 }
47 49
48 static void __exit kdb_hello_cmd_exit(void) 50 static void __exit kdb_hello_cmd_exit(void)
49 { 51 {
50 kdb_unregister(&hello_cmd); !! 52 kdb_unregister("hello");
51 } 53 }
52 54
53 module_init(kdb_hello_cmd_init); 55 module_init(kdb_hello_cmd_init);
54 module_exit(kdb_hello_cmd_exit); 56 module_exit(kdb_hello_cmd_exit);
55 57
56 MODULE_AUTHOR("WindRiver"); 58 MODULE_AUTHOR("WindRiver");
57 MODULE_DESCRIPTION("KDB example to add a hello 59 MODULE_DESCRIPTION("KDB example to add a hello command");
58 MODULE_LICENSE("GPL"); 60 MODULE_LICENSE("GPL");
59 61
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