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Special Forums News, Links, Events and Announcements Software Releases - RSS News libv4l 0.5.2 (Default branch) Post 302250599 by Linux Bot on Thursday 23rd of October 2008 07:30:02 PM
Old 10-23-2008
libv4l 0.5.2 (Default branch)

libv4l is a collection of libraries that adds a thin abstraction layer on top of video4linux2 (V4L2) devices. The purpose of this layer is to make it easy for application writers to support a wide variety of devices without having to write separate code for different devices in the same class. It consists of 3 different libraries. libv4lconvert offers functions to convert from any (known) pixel format to V4l2_PIX_FMT_BGR24 or V4l2_PIX_FMT_YUV420. libv4l1 offers the (deprecated) v4l1 API on top of v4l2 devices, independent of the drivers for those devices supporting v4l1 compatibility (which many v4l2 drivers do not). libv4l2 offers the v4l2 API on top of v4l2 devices, while adding for the application transparent libv4lconvert conversion where necessary. License: GNU Lesser General Public License (LGPL) Changes:
A workaround was introduced for some drivers' (notably pwc's) inconsistency in V4L's s_fmt() versus try_fmt() return values. Other minor improvements were made. Image

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Sys::Virt::NodeDevice(3)				User Contributed Perl Documentation				  Sys::Virt::NodeDevice(3)

NAME
Sys::Virt::NodeDevice - Represent & manage a libvirt storage pool DESCRIPTION
The "Sys::Virt::NodeDevice" module represents a storage pool managed by libvirt. There are a variety of storage pool implementations for LVM, Local directories/filesystems, network filesystems, disk partitioning, iSCSI, and SCSI. METHODS
my $name = $dev->get_name() Returns a string with a locally unique name of the device my $parentname = $dev->get_parent() Returns a string with a locally unique name of the parent of the device, or undef if there is no parent my $xml = $dev->get_xml_description() Returns an XML document containing a complete description of the storage dev's configuration $dev->reattach() Rebind the node device to the host OS device drivers. $dev->dettach() Unbind the node device from the host OS device driver $dev->reset() Reset the node device. The device must be unbound from the host OS drivers for this to work $dev->destroy() Destroy the virtual device releasing any OS resources associated with it. my @caps = $dev->list_capabilities() Return a list of all capabilities in the device. CONSTANTS
This section documents constants that are used with various APIs described above LIST FILTERING The following constants are used to filter object lists Sys::Virt::NodeDevice::LIST_CAP_NET Include devices with the network capability Sys::Virt::NodeDevice::LIST_CAP_PCI_DEV Include devices with the PCI device capability Sys::Virt::NodeDevice::LIST_CAP_SCSI Include devices with the SCSI capability Sys::Virt::NodeDevice::LIST_CAP_SCSI_HOST Include devices with the SCSI host capability Sys::Virt::NodeDevice::LIST_CAP_SCSI_TARGET Include devices with the SCSI target capability Sys::Virt::NodeDevice::LIST_CAP_STORAGE Include devices with the storage capability Sys::Virt::NodeDevice::LIST_CAP_SYSTEM Include devices with the system capability Sys::Virt::NodeDevice::LIST_CAP_USB_DEV Include devices with the USB device capability Sys::Virt::NodeDevice::LIST_CAP_USB_INTERFACE Include devices with the USB interface capability Sys::Virt::NodeDevice::LIST_CAP_FC_HOST Include devices with the fibre channel host capability Sys::Virt::NodeDevice::LIST_CAP_VPORTS Include devices with the NPIV vport capability Sys::Virt::NodeDevice::LIST_CAP_SCSI_GENERIC Include devices with the SCSI generic capability AUTHORS
Daniel P. Berrange <berrange@redhat.com> COPYRIGHT
Copyright (C) 2006-2009 Red Hat Copyright (C) 2006-2009 Daniel P. Berrange LICENSE
This program is free software; you can redistribute it and/or modify it under the terms of either 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), or, the Artistic License, as specified in the Perl README file. SEE ALSO
Sys::Virt, Sys::Virt::Error, "http://libvirt.org" perl v5.16.3 2013-07-30 Sys::Virt::NodeDevice(3)
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