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/*
* Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
* 2005-2007 Takahiro Hirofuchi
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <getopt.h>
#include <unistd.h>
#include "usbip_common.h"
#include "utils.h"
#include "usbip.h"
static const char usbip_unbind_usage_string[] =
"usbip unbind <args>\n"
" -b, --busid=<busid> Unbind " USBIP_HOST_DRV_NAME ".ko from "
"device on <busid>\n";
void usbip_unbind_usage(void)
{
printf("usage: %s", usbip_unbind_usage_string);
}
static int use_device_by_other(char *busid)
{
int rc;
int config;
/* read and write the same config value to kick probing */
config = read_bConfigurationValue(busid);
if (config < 0) {
dbg("read bConfigurationValue of %s, failed", busid);
return -1;
}
rc = modify_match_busid(busid, 0);
if (rc < 0) {
dbg("del %s to match_busid, failed", busid);
return -1;
}
rc = write_bConfigurationValue(busid, config);
if (rc < 0) {
dbg("read bConfigurationValue of %s, failed", busid);
return -1;
}
info("bind %s to other drivers than usbip, complete!", busid);
return 0;
}
int usbip_unbind(int argc, char *argv[])
{
static const struct option opts[] = {
{ "busid", required_argument, NULL, 'b' },
{ NULL, 0, NULL, 0 }
};
int opt;
int ret = -1;
for (;;) {
opt = getopt_long(argc, argv, "b:", opts, NULL);
if (opt == -1)
break;
switch (opt) {
case 'b':
ret = use_device_by_other(optarg);
goto out;
default:
goto err_out;
}
}
err_out:
usbip_unbind_usage();
out:
return ret;
}
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