Murasaki LinkStation's USB hot-plugging system - Revision history

77.128.184.6: /* Murasaki - 'Another HotPlug' */

77.128.184.6 — Sat, 03 Mar 2007 22:42:12 GMT

Murasaki - 'Another HotPlug'

← Older revision		Revision as of 22:42, 3 March 2007
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	== Murasaki - 'Another HotPlug' ==		== Murasaki - 'Another HotPlug' ==

-	~~[[Image:Bar.png~~\|~~frame\| '''~~Linux USB hot-plugging Systems~~'''<br>~~Linux hotplugging has changed often over time. While e.g. ''HotPlug'' was common in distributions based on the 2.4 kernel series, this has changed to ''udev'' in the 2.6 series. The original LS firmware, while based on a 2.4 kernel does not use ''HotPlug'', but yet another system.]]	+	{{Postit\|Linux USB hot-plugging Systems\|Linux hotplugging has changed often over time. While e.g. ''HotPlug'' was common in distributions based on the 2.4 kernel series, this has changed to ''udev'' in the 2.6 series. The original LS firmware, while based on a 2.4 kernel does not use ''HotPlug'', but yet another system, called ''Murasaki''.}}


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	==== Drivers & Kernel Modules ====		==== Drivers & Kernel Modules ====
-	~~[[Image:Bar.png~~\|~~frame\| '''~~Kernel and Modules~~'''<br>~~Just adding modules is sometimes not enough to ensure a USB device works under OpenLink. Unfortunately, some loadable modules require build-in kernel support, too. And that has often not been compiled into the stock kernel or OpenLink kernel. One example is support for USB keyboards. While the [[Loadable kernel modules]] collection contains the necessary Linux module for USB keyboards, the necessary support in the kernel is missing. One would have to build and install a new kernel to fix such problems.]]	+	{{Postit\|Kernel and Modules\|Just adding modules is sometimes not enough to ensure a USB device works under OpenLink. Unfortunately, some loadable modules require build-in kernel support, too. And that has often not been compiled into the stock kernel or OpenLink kernel. One example is support for USB keyboards. While the [[Loadable kernel modules]] collection contains the necessary Linux module for USB keyboards, the necessary support in the kernel is missing. One would have to build and install a new kernel to fix such problems.}}
	Murasaki is not limited to handling only printers and hard disks. It can handle other types of USB devices too. However, the necessary drivers (kernel modules) must first be built and installed on the LinkStation. See [[Loadable kernel modules]] for information about loadable kernel modules - some of which are for USB devices.		Murasaki is not limited to handling only printers and hard disks. It can handle other types of USB devices too. However, the necessary drivers (kernel modules) must first be built and installed on the LinkStation. See [[Loadable kernel modules]] for information about loadable kernel modules - some of which are for USB devices.

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	Attached: Yes		Attached: Yes

-	~~[[Image:Bar.png~~\|~~frame\| '''~~Storage Devices & USB Hubs~~'''<br>~~Storage devices and hubs don't mix very well when using the stock or OpenLink firmware. If a USB hub is in use, and a storage device doesn't work, try removing the hub.]]	+	{{Postit\|Storage Devices & USB Hubs\|Storage devices and hubs don't mix very well when using the stock or OpenLink firmware. Some people got things working, while it fails for others. If a USB hub is in use, and a storage device doesn't work, try removing the hub.}}
	:Note the ''Attached: Yes'' line. If this doesn't say ''Yes'', then the device has been found, but for some reason is not attached (no media in the device). However, this can also happen when an external USB hub is in use between the storage device and the LinkStation. The only known way to fix this problem with a hub is to remove the hub and connect the storage device directly.		:Note the ''Attached: Yes'' line. If this doesn't say ''Yes'', then the device has been found, but for some reason is not attached (no media in the device). However, this can also happen when an external USB hub is in use between the storage device and the LinkStation. The only known way to fix this problem with a hub is to remove the hub and connect the storage device directly.

Ramuk: /* Overview */

Ramuk — Sun, 04 Feb 2007 00:32:20 GMT

Overview

← Older revision		Revision as of 00:32, 4 February 2007
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	=== Overview ===		=== Overview ===

-	The original LinkStation firmware (at least for the [[LS1]] and [[LS2]]) and the [[OpenLink]] firmware use a software called ''Murasaki'' for handling the USB hot-plugging of printers and hard disks. [[http://www.dotaster.com/~shuu/linux/murasaki/ Murasaki]] is not some special Buffalo software, but a free alternative hot-plugging framework for Linux. It replaces Linux's normal hot-plugging framework ''HotPlug''. It is unknown why [[Buffalo]] / [[MontaVista]] went for Murasaki instead of the standard hot-plugging framework. But anyhow, Murasaki is suitable for the desired task.	+	The original LinkStation firmware (at least for the [[LS1]] and [[LS2]]) and the [[OpenLink]] firmware use a software called ''Murasaki'' for handling the USB hot-plugging of printers and hard disks. [[http://www.dotaster.com/~shuu/linux/murasaki/ Murasaki]] is not some special Buffalo software, but a free alternative hot-plugging framework for Linux. It replaces Linux's normal hot-plugging framework ''HotPlug''. It is unknown why [[w:Melco\|Buffalo]] / [[MontaVista]] went for Murasaki instead of the standard hot-plugging framework. But anyhow, Murasaki is suitable for the desired task.

	The Murasaki version 0.6.12 that comes with the mipsel-hdhlan LinkStation 2.05 firmware is rather old. That version also is incomplete. The components which are not used for USB hot-plugging are not included. However, the missing components, e.g. FireWire support, don't make much sense on the LinkStation and the old version is nevertheless functional.		The Murasaki version 0.6.12 that comes with the mipsel-hdhlan LinkStation 2.05 firmware is rather old. That version also is incomplete. The components which are not used for USB hot-plugging are not included. However, the missing components, e.g. FireWire support, don't make much sense on the LinkStation and the old version is nevertheless functional.

77.128.168.240 at 09:26, 28 January 2007

77.128.168.240 — Sun, 28 Jan 2007 09:26:15 GMT

← Older revision		Revision as of 09:26, 28 January 2007
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	Attached: Yes		Attached: Yes

		+	[[Image:Bar.png\|frame\| '''Storage Devices & USB Hubs'''<br>Storage devices and hubs don't mix very well when using the stock or OpenLink firmware. If a USB hub is in use, and a storage device doesn't work, try removing the hub.]]
	:Note the ''Attached: Yes'' line. If this doesn't say ''Yes'', then the device has been found, but for some reason is not attached (no media in the device). However, this can also happen when an external USB hub is in use between the storage device and the LinkStation. The only known way to fix this problem with a hub is to remove the hub and connect the storage device directly.		:Note the ''Attached: Yes'' line. If this doesn't say ''Yes'', then the device has been found, but for some reason is not attached (no media in the device). However, this can also happen when an external USB hub is in use between the storage device and the LinkStation. The only known way to fix this problem with a hub is to remove the hub and connect the storage device directly.

77.128.179.206 at 18:56, 27 January 2007

77.128.179.206 — Sat, 27 Jan 2007 18:56:53 GMT

Show changes

Ramuk: /* Allowing More than 1 USB disk */

Ramuk — Mon, 14 Aug 2006 00:25:36 GMT

Allowing More than 1 USB disk

← Older revision		Revision as of 00:25, 14 August 2006
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	[[Category:General]]		[[Category:General]]
-		+	[[category:OpenLink]]
	[[Category:USB]]		[[Category:USB]]
	[[Category:Howto]]		[[Category:Howto]]

Ramuk: Articles/GeneralMurasakiAnotherHotPlug moved to Murasaki LinkStation's USB hot-plugging system

Ramuk — Sun, 23 Jul 2006 00:45:19 GMT

Articles/GeneralMurasakiAnotherHotPlug moved to Murasaki LinkStation's USB hot-plugging system

← Older revision

Revision as of 00:45, 23 July 2006

Ramuk at 23:10, 20 July 2006

Ramuk — Thu, 20 Jul 2006 23:10:38 GMT

← Older revision		Revision as of 23:10, 20 July 2006
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-		+	{{Template:Articles}}''<font color=red><small>
-	''<font color=red><small>	+
	This article Based on work by Harry, frontalot, and nix.		This article Based on work by Harry, frontalot, and nix.
	Originally by nix.		Originally by nix.

Ramuk at 20:39, 30 June 2006

Ramuk — Fri, 30 Jun 2006 20:39:12 GMT

← Older revision		Revision as of 20:39, 30 June 2006
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		+
		+	''<font color=red><small>
		+	This article Based on work by Harry, frontalot, and nix.
		+	Originally by nix.
		+	at Linkstationwiki.org
		+	</small></font>''<br>
		+
	== Murasaki - 'Another HotPlug' ==		== Murasaki - 'Another HotPlug' ==

Ramuk at 03:59, 28 June 2006

Ramuk — Wed, 28 Jun 2006 03:59:30 GMT

← Older revision		Revision as of 03:59, 28 June 2006
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	[[Category:USB]]		[[Category:USB]]
		+	[[Category:Howto]]

Ramuk at 00:32, 26 June 2006

Ramuk — Mon, 26 Jun 2006 00:32:18 GMT

← Older revision		Revision as of 00:32, 26 June 2006
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	<tt>mount_sd.sh</tt>, as-delivered, just mounts the first USB disk found. This is in line with Buffalo's product description. If one feels adventurous this can be changed in <tt>mount_sd.sh</tt>. The code was originally in <tt>mount_sd.sh</tt> and has just been commented out. The commented-out sections need some minor changes to get them to work again.		<tt>mount_sd.sh</tt>, as-delivered, just mounts the first USB disk found. This is in line with Buffalo's product description. If one feels adventurous this can be changed in <tt>mount_sd.sh</tt>. The code was originally in <tt>mount_sd.sh</tt> and has just been commented out. The commented-out sections need some minor changes to get them to work again.
		+
		+
		+	[[Category:General]]
		+
		+	[[Category:USB]]