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60 lines
1.5 KiB
60 lines
1.5 KiB
/* |
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* Created by: Jason Wessel <[email protected]> |
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* |
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* Copyright (c) 2010 Wind River Systems, Inc. All Rights Reserved. |
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* |
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* This file is licensed under the terms of the GNU General Public |
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* License version 2. This program is licensed "as is" without any |
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* warranty of any kind, whether express or implied. |
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*/ |
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#include <linux/module.h> |
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#include <linux/kdb.h> |
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/* |
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* All kdb shell command call backs receive argc and argv, where |
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* argv[0] is the command the end user typed |
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*/ |
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static int kdb_hello_cmd(int argc, const char **argv) |
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{ |
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if (argc > 1) |
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return KDB_ARGCOUNT; |
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if (argc) |
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kdb_printf("Hello %s.\n", argv[1]); |
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else |
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kdb_printf("Hello world!\n"); |
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return 0; |
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} |
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static int __init kdb_hello_cmd_init(void) |
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{ |
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/* |
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* Registration of a dynamically added kdb command is done with |
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* kdb_register() with the arguments being: |
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* 1: The name of the shell command |
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* 2: The function that processes the command |
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* 3: Description of the usage of any arguments |
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* 4: Descriptive text when you run help |
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* 5: Number of characters to complete the command |
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* 0 == type the whole command |
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* 1 == match both "g" and "go" for example |
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*/ |
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kdb_register("hello", kdb_hello_cmd, "[string]", |
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"Say Hello World or Hello [string]", 0); |
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return 0; |
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} |
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static void __exit kdb_hello_cmd_exit(void) |
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{ |
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kdb_unregister("hello"); |
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} |
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module_init(kdb_hello_cmd_init); |
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module_exit(kdb_hello_cmd_exit); |
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MODULE_AUTHOR("WindRiver"); |
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MODULE_DESCRIPTION("KDB example to add a hello command"); |
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MODULE_LICENSE("GPL");
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