u-boot/board/w7o/cmd_vpd.c
Wolfgang Denk a89c33db96 General help message cleanup
Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.

Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.

This patch cleans this up - for example:

Before:
	=> help dtt
	dtt - Digital Thermometer and Thermostat

	Usage:
	dtt         - Read temperature from digital thermometer and thermostat.

After:
	=> help dtt
	dtt - Read temperature from Digital Thermometer and Thermostat

	Usage:
	dtt

Signed-off-by: Wolfgang Denk <wd@denx.de>
2009-06-12 20:47:16 +02:00

66 lines
1.8 KiB
C

/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#if defined(CONFIG_CMD_BSP)
#include "vpd.h"
/* ======================================================================
* Interpreter command to retrieve board specific Vital Product Data, "VPD"
* ======================================================================
*/
int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
VPD vpd; /* Board specific data struct */
uchar dev_addr = CONFIG_SYS_DEF_EEPROM_ADDR;
/* Validate usage */
if (argc > 2) {
cmd_usage(cmdtp);
return 1;
}
/* Passed in EEPROM address */
if (argc == 2)
dev_addr = (uchar) simple_strtoul (argv[1], NULL, 16);
/* Read VPD and output it */
if (!vpd_get_data (dev_addr, &vpd)) {
vpd_print (&vpd);
return 0;
}
return 1;
}
U_BOOT_CMD(
vpd, 2, 1, do_vpd,
"Read Vital Product Data",
"[dev_addr]\n"
" - Read VPD Data from default address, or device address 'dev_addr'."
);
#endif