1 /***************************************************************************
2 *
3 * hal-system-lcd-set-brightness-sunos.c : Set LCD brightness
4 *
5 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
6 * Use is subject to license terms.
7 *
8 * Licensed under the Academic Free License version 2.1
9 *
10 **************************************************************************/
11
12 #pragma ident "%Z%%M% %I% %E% SMI"
13
14 #ifdef HAVE_CONFIG_H
15 #include <config.h>
16 #endif
17
18 #include <errno.h>
19 #include <string.h>
20 #include <strings.h>
21 #include <ctype.h>
22 #include <stdlib.h>
23 #include <stdio.h>
24 #include <sys/ioctl.h>
25 #include <fcntl.h>
26 #include <unistd.h>
27 #include <sys/acpi_drv.h>
28 #include "../../hald/util.h"
29
30 int
main(int argc,char * argv[])31 main(int argc, char *argv[])
32 {
33 char arg[10];
34 int level;
35 int fd = -1;
36 char *udi;
37 char device_file[HAL_PATH_MAX] = "/devices";
38 char *devfs_path;
39
40 if ((udi = getenv("UDI")) == NULL) {
41 return (1);
42 }
43 if ((devfs_path = getenv("HAL_PROP_SOLARIS_DEVFS_PATH")) == NULL) {
44 return (1);
45 }
46 strlcat(device_file, devfs_path, HAL_PATH_MAX);
47 fprintf(stderr, "Setting brightness on %s (udi=%s)",
48 device_file, udi);
49
50 if ((fd = open(device_file, O_RDONLY | O_NONBLOCK)) < 0) {
51 fprintf(stderr, "Cannot open %s: %s", device_file,
52 strerror(errno));
53 return (1);
54 }
55 if (fgets(arg, sizeof (arg), stdin)) {
56 level = atoi(arg);
57 }
58 if (ioctl(fd, ACPI_DRV_IOC_SET_BRIGHTNESS, &level) < 0) {
59 close(fd);
60 return (1);
61 } else {
62 close(fd);
63 return (0);
64 }
65 }
66