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| '' HAL provides an abstract view on [[hardware]]. 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.'' | {{{#!wiki important '''Please note''' HAL is in the process of being '''deprecated''' by upstream, replaced by [[udev]], udisks, upower etc. For information about the progress within Debian, see [[HALRemoval]]. }}} HAL provides an abstract view on [[hardware]]. 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. |
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| * It provides an infrastructure to configure [any] device. (It's now used by [[Xorg]] too). read HAL specification's [[http://people.freedesktop.org/~david/hal-spec/hal-spec.html#introduction|Inroduction]] for more information. Please note that HAL is in the process of being deprecated by upstream, replaced by [[udev]], udisks, upower... For information about the progress within Debian, see [[HALRemoval]]. |
* It provides an infrastructure to configure [any] device. (It was used by [[Xorg]] too). Read HAL specifications: [[http://people.freedesktop.org/~david/hal-spec/hal-spec.html#introduction|Introduction]] for more information. |
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| HAL (DebPkg:hal, DebPkg:hal-info) is only installed Debian Desktop/Laptops by default. (It is not a [[http://www.debian.org/doc/debian-policy/ch-archive.html#s-priorities|Priority]]=standard package). * [[http://manpage.debian.net/man/1/lshal|lshal(1)]] - list HAL devices. * [[http://manpage.debian.net/man/1/hal-find-by-property|hal-find-by-property(1)]] - find device objects by property matching. * [[http://manpage.debian.net/man/1/hal-find-by-capability|hal-find-by-capability(1)]] - find device objects by capability matching. And others. There is also, DebPkg:gnome-device-manager which is a Gnome tool to view the device on the local machine : {{attachment:gnome-device-manager.png}} |
HAL (DebPkg:hal, DebPkg:hal-info) was only installed on Debian Desktop/Laptops by default. (It is not a [[http://www.debian.org/doc/debian-policy/ch-archive.html#s-priorities|Priority]]=standard package). Sample programs: * [[http://manpage.debian.net/man/1/lshal|lshal(1)]] -- list HAL devices. * [[http://manpage.debian.net/man/1/hal-find-by-property|hal-find-by-property(1)]] -- find device objects by property matching. * [[http://manpage.debian.net/man/1/hal-find-by-capability|hal-find-by-capability(1)]] -- find device objects by capability matching. * DebPkg:gnome-device-manager, which is a Gnome tool to view the devices on the local machine: . [[attachment:gnome-device-manager.png|{{attachment:gnome-device-manager.png|GNOME Device Manager|width=150}}]] <<BR>> |
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| * HAL Homepage ~-<<BR>>[[http://www.freedesktop.org/Software/hal]]-~ * Guide to using powermanagement quirks to fix resume ~-<<BR>>[[http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-index.html]] * Guide to using keymap quirks to fix unknown scancodes ~-<<BR>>[[http://people.freedesktop.org/~hughsient/quirk/quirk-keymap-index.html]]-~ * HAL specifications ~-<<BR>>[[http://people.freedesktop.org/~david/hal-spec/hal-spec.html]]<<BR>>''or'' {{{/usr/share/doc/hal-doc/spec/hal-spec.html}}} from package DebPkg:hal-doc -~ |
* [[http://www.freedesktop.org/Software/hal|HAL Homepage]] * [[http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-index.html|Guide to using powermanagement quirks to fix resume]] * [[http://people.freedesktop.org/~hughsient/quirk/quirk-keymap-index.html|Guide to using keymap quirks to fix unknown scancodes]] * [[http://people.freedesktop.org/~david/hal-spec/hal-spec.html|HAL specifications]] (''or'' [[file:///usr/share/doc/hal-doc/spec/hal-spec.html|hal-spec.html]] from package DebPkg:hal-doc). |
Hardware Abstraction Layer
Please note
HAL is in the process of being deprecated by upstream, replaced by udev, udisks, upower etc. For information about the progress within Debian, see HALRemoval.
HAL provides an abstract view on hardware. 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.
It provides an infrastructure to configure [any] device. (It was used by Xorg too).
Read HAL specifications: Introduction for more information.
In Debian
HAL (hal, hal-info) was only installed on Debian Desktop/Laptops by default. (It is not a Priority=standard package).
Sample programs:
lshal(1) -- list HAL devices.
hal-find-by-property(1) -- find device objects by property matching.
hal-find-by-capability(1) -- find device objects by capability matching.
gnome-device-manager, which is a Gnome tool to view the devices on the local machine:
