RE: what's HAL?

[email protected] (Andrew Greig)
Newsgroups gmane.org.user-groups.mlug.main
Message-ID <[email protected]>
Hi Diane,

Sorry to take so long to get this to the list.  I read about HAL in the April 2005 Linux Magazine, on hot plugging USB devices. Here is a quote from the article:

"Another layer of the hotplugging system provides an interface between the hardware and the application.  The Hardware Abstraction Layer (HAL)  (see www.freedesktop.org/Software/hal ) has detailed information for hardware, which is stored in device information files (.fdi).

"You can use the HAL layer to make changes for special devices.  For example, one user solved the issue of his iPod not de-registering correctly (iPod with udev: http://www.kgarner.com/blogarchives/2005/01/11/fc3-hal-ipod/  )

FDI files are XML formatted files that provide detailed service descriptions. The lshal command gives us the details.  The hal-device-manager has the same data but with a neat gui.  Suse users will have to make do without HAL components as Suse has a different way of handling hardware details"

snip to last para:

"Despite all the progress that has been made wrt device detection, things are still not perfect.  The hotplug system agents need detailed hardware information, and this information will be obsolete on a system that is a few months old. "

Hope this helps


Andrew Greig







Diane Tan <[email protected]> wrote:

>hello -
>
>i've just installed debian sarge for the first time on a funny little 
>gimmicky "entertainment centre" i.e computer - and noticed during startup 
>and in .xsession-errors that there seems to be a problem with HAL.  During 
>startup, the installation can't start HAL.
>
>What's HAL?  and where would I start looking to fix the problem?
>
>cheers
>diane
>
>
>_______________________________________________
>Melbourne Linux Users Group (Australia)
>MLUG Web Site: http://www.mlug.org.au/
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>


-- 
Andrew Greig
Community Distributor
OpenOffice.org


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