/ 
Acpi-Class-0.003
River stage zero No dependents
/ Acpi::Class

NAME

Acpi::Class - Gets ACPI information fom /sys/class directory.

SYNOPSIS

my $class   = Acpi::Class->new( class => 'power_supply');
my $devices = $class->g_devices;
print "Power devices: ";
foreach (@$devices) {print "$_ "} print "\n";
$class->device('AC');
my $ac_online          = $class->g_values->{'online'};
$class->device('BAT0');
my $values             = $class->g_values;
my $battery_present    = $values->{'present'};
my $battery_energy_now = $values->{'energy_now'};
my $battery_capacity   = $values->{'capacity'};

if ( $ac_online == 1 and $battery_present == 1 ) 
{
	say "Ac on and battery in use ";
	say "Energy now = ". $battery_energy_now ; 
	say "Capacity " . $battery_capacity ." %";	
} 
elsif ($battery_present) 
{
	say "Battery in use";
	say "Energy now = ". $battery_energy_now ; 
	say "Capacity " . $battery_capacity ." %";	
} 
else 
{ 
	say "Battery not present"; 
}

# get all values of device BAT1
say "-" x 50;
$class->p_device_values;

say "-" x 50;
# get all values of class power_supply
$class->p_class_values;

DESCRIPTION

Acpi::Class provides ACPI information from the directory /sys/class. It's specific for GNU/Linux.

ATTRIBUTES

Acpi::Class implements the following attributes:

class

$class = Acpi::Class->new( class => 'thermal');

$class->class('thermal');

Sets the class (directory under /sys/class).

device

$class = Acpi::Class->new( class => 'thermal', device=> 'BAT0' ));

$class->device('BAT0');

Sets the device (directory under /sys/class/$class).

METHODS

Acpi::Class implements the following methods:

new

my $class = Acpi::Class->new( class => 'thermal', device => 'BAT1 );

Object constructor.

g_classes

my $classes = $class->g_classes;

Gets an ArrayRef of the available classes (directories under /sys/class).

g_devices

Gets an ArrayRef of available devices (directories under /sys/class/$class).

g_values

Gets a Hashef of the attributes and values of a device (content of the files in /sys/class/$class/$device).

p_device_values

$class->class('power_supply');
$class->device('BAT1');
$class->p_device_values;

Prints all the attributes and values of the device BAT1.

p_class_values

$class->class('power_supply');
$class->p_device_values;

Print all the attributes and values of the devices in the class 'power_supply'.

COMMUNITY

Get involved:

SEE ALSO

The modules Acpi::Battery, Acpi::Fan and Acpi::Temperature get the information from the directory /proc/acpi. This directory is deprecated in Linux kernel 2.6.24 and deleted in 2.6.39.