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 #ifdef HAVE_CONFIG_H
13 #include <config.h>
14 #endif
15
16 #include <errno.h>
17 #include <string.h>
18 #include <strings.h>
19 #include <ctype.h>
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <sys/ioctl.h>
23 #include <fcntl.h>
24 #include <unistd.h>
25 #include <sys/acpi_drv.h>
26 #include "../../hald/util.h"
27
28 int
main(int argc,char * argv[])29 main(int argc, char *argv[])
30 {
31 char arg[10];
32 int level;
33 int fd = -1;
34 char *udi;
35 char device_file[HAL_PATH_MAX] = "/devices";
36 char *devfs_path;
37
38 if ((udi = getenv("UDI")) == NULL) {
39 return (1);
40 }
41 if ((devfs_path = getenv("HAL_PROP_SOLARIS_DEVFS_PATH")) == NULL) {
42 return (1);
43 }
44 strlcat(device_file, devfs_path, HAL_PATH_MAX);
45 fprintf(stderr, "Setting brightness on %s (udi=%s)",
46 device_file, udi);
47
48 if ((fd = open(device_file, O_RDONLY | O_NONBLOCK)) < 0) {
49 fprintf(stderr, "Cannot open %s: %s", device_file,
50 strerror(errno));
51 return (1);
52 }
53 if (fgets(arg, sizeof (arg), stdin)) {
54 level = atoi(arg);
55 }
56 if (ioctl(fd, ACPI_DRV_IOC_SET_BRIGHTNESS, &level) < 0) {
57 close(fd);
58 return (1);
59 } else {
60 close(fd);
61 return (0);
62 }
63 }
64