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barebox/commands/usb.c

60 lines
1.5 KiB
C

/*
* usb.c - rescan for USB devices
*
* Copyright (c) 2011 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* 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 version 2
* as published by the Free Software Foundation.
*
* 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>
#include <usb/usb.h>
#include <getopt.h>
static int scanned;
static int do_usb(int argc, char *argv[])
{
int opt;
while ((opt = getopt(argc, argv, "f")) > 0) {
switch (opt) {
case 'f':
scanned = 0;
break;
}
}
if (!scanned) {
usb_rescan();
scanned = 1;
}
return 0;
}
BAREBOX_CMD_HELP_START(usb)
BAREBOX_CMD_HELP_USAGE("usb [-f]\n")
BAREBOX_CMD_HELP_SHORT("Scan for USB devices.\n")
BAREBOX_CMD_HELP_OPT("-f", "force. Rescan if if if have scanned once\n")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(usb)
.cmd = do_usb,
.usage = "(re-)detect USB devices",
BAREBOX_CMD_HELP(cmd_usb_help)
BAREBOX_CMD_END