/usr/share/doc/apcupsd/examples/hid-set.c is in apcupsd-doc 3.14.14-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | /*
* Copyright (c) 2002 Paul Stewart
*
* UPS (HID) set values in UPS
*/
/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <hiddev@wetlogic.net>.
*/
#define HID_MAX_USAGES 1024
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/signal.h>
#include <asm/types.h>
#include <linux/hiddev.h>
#define UPS_USAGE 0x840004
static inline int find_application(int fd, unsigned usage) {
int i = 0;
unsigned ret;
while ((ret = ioctl(fd, HIDIOCAPPLICATION, i)) != -1 &&
ret != usage) { printf("App: %08x\n", ret); i++; }
if (ret < 0) {
fprintf(stderr, "GUSAGE returns %x", ret);
perror("");
}
return (ret == usage);
}
int main (int argc, char **argv) {
int fd = -1, i, is_ups = 0;
struct hiddev_report_info rinfo;
struct hiddev_usage_ref uref;
char evdev[20];
for (i = 0; i < 4; i++) {
sprintf(evdev, "/dev/usb/hid/hiddev%d", i);
if ((fd = open(evdev, O_RDONLY)) >= 0) {
if (find_application(fd, UPS_USAGE)) {
printf("It's a UPS!\n");
is_ups = 1;
}
break;
}
}
if (i >= 4) {
fprintf(stderr, "Couldn't find hiddev device.\n");
exit(1);
}
/*
Usage: 00840057 val -1 (Feature/53/0/0) [DelayBeforeShutdown]
Usage: 00840056 val -1 (Feature/54/0/0) [DelayBeforeStartup]
*/
memset(&uref, 0, sizeof(uref));
uref.report_type = HID_REPORT_TYPE_FEATURE;
if (argc > 1 && strcmp(argv[1], "off")) {
uref.report_id = 54;
} else {
uref.report_id = 53;
}
uref.field_index = 0;
uref.usage_index = 0;
uref.value = 5;
if (ioctl(fd, HIDIOCSUSAGE, &uref) != 0) perror("SUSAGE/S");
rinfo.report_type = uref.report_type;
rinfo.report_id = uref.report_id;
if (ioctl(fd, HIDIOCSREPORT, &rinfo) != 0) perror("SREPORT/S");
printf("Set 5 in report id %d\n", uref.report_id);
exit(0);
}
|