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common/cmd_help.c
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/* * Copyright 2000-2009 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ #include <common.h> #include <command.h> |
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static int do_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
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{ |
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cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd); const int len = ll_entry_count(cmd_tbl_t, cmd); return _do_help(start, len, cmdtp, flag, argc, argv); |
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} U_BOOT_CMD( help, CONFIG_SYS_MAXARGS, 1, do_help, |
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"print command description/usage", " " " - print brief description of all commands " "help command ... " " - print detailed usage of 'command'" |
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); /* This does not use the U_BOOT_CMD macro as ? can't be used in symbol names */ |
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ll_entry_declare(cmd_tbl_t, question_mark, cmd) = { |
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"?", CONFIG_SYS_MAXARGS, 1, do_help, "alias for 'help'", |
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#ifdef CONFIG_SYS_LONGHELP |
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"" |
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#endif /* CONFIG_SYS_LONGHELP */ |
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}; |