HAL - revision history

Dank at 21:46, 17 January 2010

2010-01-17T21:46:07Z

← Older revision		Revision as of 21:46, 17 January 2010
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			* Exciting news! Ubuntu 10.04 (Lucid Lynx Alpha 2, whatever that indicates) has [http://www.ubuntu.com/testing/lucid/alpha2 dropped HAL]! Our long dark night might soon be over. Hopefully [[Debian]] will follow.
	It's good to possess a thorough understanding of [[udev]] and [[sysfs]] before messing with HAL.		It's good to possess a thorough understanding of [[udev]] and [[sysfs]] before messing with HAL.

Dank at 09:56, 17 April 2009

2009-04-17T09:56:09Z

← Older revision		Revision as of 09:56, 17 April 2009
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	Why on earth does [[Xorg hell\|X]] require HAL as of late? See [http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=515214 bug 515214]...		Why on earth does [[Xorg hell\|X]] require HAL as of late? See [http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=515214 bug 515214]...
			<pre>Note that this is the direction that upstream is heading in. The design
			is conceptually quite simple. The X server asks the system, in this case
			via hal, to enumerate input devices are present and gets them enumerated
			back. It then utilizes that hardware via the kernel rather than driving
			them itself with its own drivers. Note that this system was designed and
			implemented by a Nokia employee for an embedded system. It brings an
			enormous simplification to the overall operating system by putting
			things like keymaps in one place, and only having the kernel driving the
			hardware rather than both the kernel and the X server. It also makes it
			flexible with system changes, allowing hotplugging. Most importantly to
			Debian and the XSF, it means that we don't have to carry around a
			gigantic horrible bunch of shell script just to configure the system.
			All of this is a good thing.

			If you object to having the X server depend on external software, you're
			going to have to learn to like it, because the goal has been to decrease
			the amount of OS code that the server needs to duplicate in order to do
			its job. It no longer scans the PCI bus itself, but instead relies on
			libpciaccess to query the OS. It no longer carries its own build system,
			but relies on autotools. All of the video drivers are moving significant
			portions of themselves in to the kernel as well. If you can't deal with
			hal, then you'll have to write a replacement for it that allows the
			server to query the system in a transparent way, and also allows one to
			easily configure device-specific properties. This is something that hal
			currently does very well and the X server can not do otherwise.

			All of that said, it's very likely that we will downgrade the depends to
			recommends, just not right now. We have actual important bugs like
			totally broken installs that we want to deal with first.

			- David Nusinow</pre>
			So it goes!

Dank at 09:54, 17 April 2009

2009-04-17T09:54:00Z

← Older revision		Revision as of 09:54, 17 April 2009
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	It's good to possess a thorough understanding of [[udev]] and [[sysfs]] before messing with HAL.		It's good to possess a thorough understanding of [[udev]] and [[sysfs]] before messing with HAL.

			Why on earth does [[Xorg hell\|X]] require HAL as of late? See [http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=515214 bug 515214]...

WikiSysop: 1 revision

2009-01-28T07:32:14Z

1 revision

← Older revision	Revision as of 07:32, 28 January 2009
(No difference)

Dank at 07:43, 21 October 2008

2008-10-21T07:43:55Z

New page

It's good to possess a thorough understanding of [[udev]] and [[sysfs]] before messing with HAL.