NAME

Solaris::DeviceTree::Filesystem::MinorNode - Minor node of the Solaris device filetree

SYNOPSIS

Construction:

  use Solaris::DeviceTree::Filesystem;
  $tree = Solaris::DeviceTree::Filesystem->new;
  @disks = $tree->find_nodes( type => 'disk' );
  @minor = $disk[0]->minor_nodes;

Data access methods:

  $name = $minor->name;
  $devfs_path = $minor->devfs_path;
  ($major_num,$minor_num) = $minor->devt;
  if( !defined $minor->nodetype ) { print "I knew that!"; }
  $spectype = $minor->spectype
  if( $minor->is_raw_device ) { ... }
  if( $minor->is_block_device ) { ... }
  $treenode = $minor->node;
  $slice = $minor->slice;

DESCRIPTION

This class implements a minor node for a device file in the Solaris filesystem devicetree.

This is an internal class to Solaris::DeviceTree::Filesystem. There should be no need to generate instances of this class in an application explicitly. Instances are generated only from Solaris::DeviceTree::Filesystem::minor_nodes.

METHODS

The following methods are available:

name

This method returns the name of the minor node. This is used e.g. as suffix of the device filename. For disks this is something like 'a' or 'a,raw'.

devfs_path

Return the complete physical path including the minor node

devt

Return the major and minor device number as a pair for the node. The major numbers should be the same for all minor nodes returned by a Solaris::DeviceTree::Libdevinfo node.

nodetype

Return the nodetype of the minor node. Because we can't find that out by looking at the filesystem we always return undef.

spectype

Returns the type of the minor node. The return values $S_IFCHR for a raw device $S_IFBLK for a block device are possible. Both scalars are exported by default.

is_raw_device

Returns true if the minor node is a raw device.

is_block_device

Returns true if the minor node is a block device.

node

Returns the associated Solaris::DevinfoTree::Filesystem node. A treenode can (and usually does) have multiple minor nodes.

slice

Returns the slice number associated with this minor node.

EXPORTS

  $S_IFCHR
  $S_IFBLK

AUTHOR

Copyright 1999-2003 Dagobert Michelsen.

SEE ALSO

  L<Solaris::DeviceTree::Filesystem>

cpanm Solaris::DeviceTree::Libdevinfo::Impl

perl -MCPAN -e shell
install Solaris::DeviceTree::Libdevinfo::Impl