
	Where results make sense

Topic: Hardware abstraction layer

Related Topics

Hardware abstraction

Computer software

Device driver

Microkernel

Hardware

Computer hardware

DOS

Computer

Wintel

IBM PC compatible

Software architecture

Industry Standard Architecture

BIOS

Amiga

Graphics card

	Hardware abstraction layer - Wikipedia, the free encyclopedia
		A hardware abstraction layer (HAL) is an abstraction layer between the physical hardware of a computer and the software that runs on that computer.
		The function is to hide differences in hardware and therefore provide a consistent platform to run applications on.
		Operating systems having a defined HAL are easily portable across different hardware.
	en.wikipedia.org /wiki/Hardware_abstraction_layer (185 words)

	hardware abstraction layer - a Whatis.com definition
		1) In computers, a hardware abstraction layer (HAL) is a layer of programming that allows a computer operating system to interact with a hardware device at a general or abstract level rather than at a detailed hardware level.
		Windows 2000 is one of several operating systems that include a hardware abstraction layer.
		The hardware abstraction layer can be called from either the operating system's kernel or from a device driver.
	whatis.techtarget.com /gDefinition/0,294236,sid5_gci214424,00.html (166 words)

	Iyonix: Hardware Abstraction Layer
		It is important to place the dividing line as close to the hardware as possible, to make it easy to design a HAL and to prevent large amounts of code duplication between HALs for different platforms.
		Making hardware calls to devices normally managed by the Kernel is liable to cause the same problems as poking the hardware.
		HAL routines internally are ATPCS, so R0-R3 are passed in as a1-a4, and R4-R7 are pushed on to the stack.
	www.iyonix.com /32bit/HAL.shtml (1716 words)

	Hardware
		For some time I've been advocating a "hardware abstraction layer." This layer is simply an interface that makes it possible to add support for new devices and new ways of connecting devices to the computer, without modifying every application that uses the device.
		This is the primary task of the hardware abstraction library.
		This is the secondary task of the hardware abstraction library.
	www.ometer.com /hardware.html (2597 words)

	hardware abstraction layer (Site not responding. Last check: 2007-10-18)
		1) In computers, a hardware abstraction layer (HAL) is a layer of programming that allows a computer operating system to interact with a hardware...
		In Windows 2000 there are several ways to troubleshoot issues related to the Hardware Abstraction Layer (HAL) that may occur as a result of...
		It is a complete hardware abstraction layer with software fallbacks for every graphics operation that is not supported by the underlying hardware.
	www.thetophandtoolinformation.com /39/hardware-abstraction-layer.html (168 words)

	What is HAL? - A Word Definition From the Webopedia Computer Dictionary
		Short for hardware abstraction layer, programming in an operating system that functions as an interface between a system’s hardware and software, providing a consistent hardware platform on which to run applications.
		When a HAL is employed, applications do not access hardware directly but access the abstract layer provided by the HAL.
		Like APIs, HALs allow applications to be device-independent because they abstract information from such systems as caches, I/O buses and interrupts and use this data to give the software a way to interact with the specific requirements of the hardware on which it is running.
	www.webopedia.com /TERM/H/HAL.html (121 words)

	Windows NT Hardware Abstraction Layer (HAL)
		The Windows NT hardware abstraction layer (HAL) refers to a layer of software that deals directly with your computer hardware.
		Because the HAL operates at a level between the hardware and the Windows NT executive services, applications and device drivers need not be aware of any hardware-specific information.
		The HAL provides routines that enable a single device driver to support a device on different hardware platforms, making device driver development much easier.
	support.microsoft.com /default.aspx?scid=kb;en-us;99588 (185 words)

	LinuxDevCenter.com: Improving Linux Driver Installation
		The aim of HAL is to prevent developers from manually implementing code that deals with devices.
		The end result really is that the hardware is useless on Linux in general until 3+ years down the road when everyone is using a kernel newer than 2.6.5.
		They only make hardware work for any appreciate fraction of the user population a long time after the driver is added to the tree.
	www.linuxdevcenter.com /pub/a/linux/2004/09/02/driver_ease.html (4186 words)

	Troubleshooting the Windows 2000 Hardware Abstraction Layer (HAL)
		There are several ways to troubleshoot issues related to the Hardware Abstraction Layer (HAL) that may occur as a result of misdetection, an outdated or non-compliant Advanced Configuration and Power Interface (ACPI) Basic Input/Output System (BIOS), or an incorrectly or manually installed computer type.
		Because of this (the device tree structures being drastically different), the system is unaware of any hardware changes after the computer restarts to include the location of the boot device.
		However, you must reinstall Windows 2000 when going to an ACPI HAL computer type on a computer that was using the Standard computer type, and then permit Windows 2000 to automatically detect the correct computer type.
	www.dewassoc.com /support/win2000/tshoot_hal.htm (1248 words)

	freedesktop.org - Software/hal (Site not responding. Last check: 2007-10-18)
		For a good backgound on what a HAL does, see the
		CVS HEAD hosts source code for HAL 0.5.x releases that require Linux kernel 2.6.10, udev 050 and using /sbin/udevsend as the hotplug multiplexer/helper (latest is HAL 0.5.0) -
		The HAL 0.4.x branch works with 2.6.8 Linux kernels and udev/hotplug (latest is HAL 0.4.7) -
	freedesktop.org /Software/hal (97 words)

	Core Audio Technologies
		Use the Apple provided Audio Units: reverb, sample rate converter, equalizer, etc. Finally, if dealing with the complexities of audio hardware is not on your development schedule, the Default Output Audio Unit provides a nice and flexible way to easily integrate the Audio HAL capabilities in your application.
		The Audio HAL is the interface between application developers and the hardware; it allows for easy manipulation of devices through both an Input/Output procedure for streaming, and a property mechanism for control.
		If all that is not enough, and you have a very special piece of hardware, you can always explore the Darwin website and take inspiration of our work...or better, subclass it.
	developer.apple.com /audio/coreaudio.html (658 words)

	PCNet-Online Forum: Hardware Abstraction Layer (HAL)
		WAG: Seems like the HAL installed depends if there are mutlitple CPUs or a hyperthreading CPU installed.
		As changing the HAL requires reinstalling the OS.
		If you run a multiprocessor HAL with only a single processor installed, the computer typically works as expected, and there is little or no affect on performance.
	www.pcnet-online.com /discus/messages/449/3127.html?1086173982 (296 words)

	BBPC News \| BuildOrBuy - HAL = Windows Hardware Abstraction Layer (Site not responding. Last check: 2007-10-18)
		Remember, the HAL is hardwired into the Windows Registry.
		By means of the filter provided by the HAL, different types of Hardware look alike to the rest of the Operating System.
		The copy of the hardware tree, which is kept in the registry, is stored differently for each type of HAL.
	www.buildorbuy.org /hal.html (1054 words)

	Debian -- libhal-storage-dev
		This abstraction layer is simply an interface that makes it possible to add support for new devices and new ways of connecting devices to the computer, without modifying every application that uses the device.
		It maintains a list of devices that currently exist, and can provide information about those upon request.
		Hardware Abstraction Layer - shared library for storage devices
	packages.debian.org /unstable/libdevel/libhal-storage-dev.html (128 words)

	Sidebar...
		While metadata exchange is a lofty and noble goal, most digital video developers working on the Windows platform would like Microsoft and its partners to give them a working hardware abstraction layer (HAL) first.
		A dozen different software engineering teams at hardware companies and software companies have struggled to avoid the Premiere "Make Movie" syndrome, which wastes time and disk space.
		Premiere 5.0 works on both platforms and with hardware independence via Adobe's hardware abstraction tools.
	www.v-site.net /smpte-ne/articles/qt30aaf1.html (351 words)

	hal Info Page (Site not responding. Last check: 2007-10-18)
		To see the collection of prior postings to the list, visit the hal Archives.
		Subscribe to hal by filling out the following form.
		You will be sent email requesting confirmation, to prevent others from gratuitously subscribing you.
	lists.freedesktop.org /mailman/listinfo/hal (228 words)

	HardwareAbstractionLayer
		"hard drive" hard-wired hardware "hardware abstraction layer" "hardware circular buffer" "hardware description language" "hardware handshaking" hardwarily
		haartrockner hardware hardwarefehler hardwarekombination hardwarekompatibilität hardwarezusätze "hart werden" "harter kurs" hartertelfe hartertfroschmaul hartertgrasmücke hartertgrundschnäpper hartertkolibri hartherzig hartherzige hartherziger hartherzigkeit hartriegel hartwurst hierdurch härter
		Hardware-Fehler Hardware Hardwarekombinationen Hardware-Kompatibilität Hardwarezusätze Härter härter "harter (weicher) Kurs" hartherzige hartherzigere hartherzig Hartherzigkeit hartherzigste Hartriegel Hartwurst "Herr der Daten" hierdurch
	dictionary-x.com /HardwareAbstractionLayer.html (252 words)

	Hardware Abstraction Layer - FOLDOC Definition (Site not responding. Last check: 2007-10-18)
		(HAL) The layer of Microsoft Windows NT where they have isolated their assembly language code.
		We hope to hear from you again soon.
		If you have problems or comments con cerning our WWW service, please send e-mail to the following address: webmaster@NightFlight.com.
	www.nightflight.com /foldoc-bin/foldoc.cgi?Hardware+Abstraction+Layer (42 words)

	How to Troubleshoot Windows 2000 Hardware Abstraction Layer Issues
		In Windows 2000 there are several ways to troubleshoot issues related to the Hardware Abstraction Layer (HAL) that may occur as a result of misdetection, an outdated or non-compliant Advanced Configuration and Power Interface (ACPI) Basic Input/Output System (BIOS), or an incorrectly or manually installed computer type.
		NOTE: In this article, the term "computer type" and "HAL" have the same meaning, and may be interchanged.
		Possible values for the HAL under Compaq include:
	support.microsoft.com /support/kb/articles/q237/5/56.asp (1321 words)

Try your search on: Qwika (all wikis)