AVR watch-dog daemon for Linkstation - Revision history

Lsuser1985: Remove category `Hacking`.

Lsuser1985 — Fri, 18 Jan 2013 15:42:01 GMT

Remove category `Hacking`.

← Older revision		Revision as of 15:42, 18 January 2013
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-	{{Template:Articles\|~~Hardware~~}}	+	{{Template:Articles\|}}
	{\|align="right" width="75%"		{\|align="right" width="75%"
	\|-		\|-
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	[[Category:Software]]		[[Category:Software]]
	[[Category:Hardware]]		[[Category:Hardware]]
-	~~[[Category:Hacking]]~~

Lsuser1985: Add category `Hardware`.

Lsuser1985 — Fri, 18 Jan 2013 15:39:53 GMT

Add category `Hardware`.

← Older revision		Revision as of 15:39, 18 January 2013
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-	{{Template:Articles}}	+	{{Template:Articles\|Hardware}}
	{\|align="right" width="75%"		{\|align="right" width="75%"
	\|-		\|-

Mflint: add troubleshooting section

Mflint — Fri, 07 Sep 2007 00:19:27 GMT

add troubleshooting section

← Older revision		Revision as of 00:19, 7 September 2007
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	<tt>exit 0</tt>		<tt>exit 0</tt>

		+	== Troubleshooting ==
		+	''' EventScript doesn't run? '''
		+
		+	If EventScript fails to run, then it could be because /bin/sh isn't symlinked to /bin/bash. The script uses ${param:start:offset} notation for a 'substring' operation which /bin/sh doesn't understand (on [[User:mflint\|mflint]]'s Ubuntu Kurobox, anyway).
		+
		+	To fix this, either make a symlink from /bin/sh to /bin/bash, or (preferred) change #!/bin/sh to #!/bin/bash at the top of EventScript.
	[[Category:LS1]]		[[Category:LS1]]
	[[Category:LS2]]		[[Category:LS2]]

77.128.168.240 at 10:18, 28 January 2007

77.128.168.240 — Sun, 28 Jan 2007 10:18:16 GMT

← Older revision		Revision as of 10:18, 28 January 2007
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	{{Template:Articles}}		{{Template:Articles}}
-	{{Brick\|~~Replacing the original~~ daemon~~, and failing to correctly installing~~ this ~~replacement will brick~~ the LinkStation}}	+	{\|align="right" width="75%"
		+	\|-
		+	\|{{Brick\|The daemon discussed in this article is essential to the LinkStation's operation. If its ''keep-alive'' messages are not sent, the LS' watchdog timer will trigger a shutdown.}}
		+	\|}
	== Description ==		== Description ==
	'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[Information/MIPSelAVR#mc_ctld\|mc_ctld]] ([[LS2]]) daemons.		'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[Information/MIPSelAVR#mc_ctld\|mc_ctld]] ([[LS2]]) daemons.

77.128.168.240 at 10:11, 28 January 2007

77.128.168.240 — Sun, 28 Jan 2007 10:11:15 GMT

← Older revision		Revision as of 10:11, 28 January 2007
Line 1:		Line 1:
	{{Template:Articles}}		{{Template:Articles}}
-		+	{{Brick\|Replacing the original daemon, and failing to correctly installing this replacement will brick the LinkStation}}
	== Description ==		== Description ==
	'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[Information/MIPSelAVR#mc_ctld\|mc_ctld]] ([[LS2]]) daemons.		'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[Information/MIPSelAVR#mc_ctld\|mc_ctld]] ([[LS2]]) daemons.

77.128.168.240: /* Install */

77.128.168.240 — Sun, 28 Jan 2007 10:07:21 GMT

Install

← Older revision		Revision as of 10:07, 28 January 2007
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	'''FreeLink'''		'''FreeLink'''

-	For those with ppc_uartd (LS1, HG, HS, KURO)	+	For those with ppc_uartd ([[LS1]], [[HG]], [[HS]], KURO)
	update-rc.d -f ppc_uartd remove		update-rc.d -f ppc_uartd remove
-	or for the ~~MIP-SEL~~	+	or for the MIPSel [[LS2]]
	update-rc.d -f mc_ctld remove		update-rc.d -f mc_ctld remove

Line 49:		Line 49:
	rm /etc/rc2.d/S95ppc_uartd		rm /etc/rc2.d/S95ppc_uartd
	rm /etc/rc0.d/K95ppc_uartd		rm /etc/rc0.d/K95ppc_uartd
-	or	+	or (MIPSel)
	rm /etc/rc2.d/mc_ctld		rm /etc/rc2.d/mc_ctld
	rm /etc/rc0.d/mc_ctld		rm /etc/rc0.d/mc_ctld

-	'''OpenLink'''	+	'''OpenLink PPC'''
	rm /etc/rc.d/rc2.d/S95ppc_uartd		rm /etc/rc.d/rc2.d/S95ppc_uartd
	rm /etc/rc.d/rc0.d/K95ppc_uartd		rm /etc/rc.d/rc0.d/K95ppc_uartd

217.162.169.174: Corrected tar options

217.162.169.174 — Thu, 09 Nov 2006 22:31:33 GMT

Corrected tar options

← Older revision		Revision as of 22:31, 9 November 2006
Line 27:		Line 27:
	cd /		cd /
	wget <link to latest version from sourcecforge site>		wget <link to latest version from sourcecforge site>
-	tar -~~xfvj~~ <filename from wget download>	+	tar -zxvf <filename from wget download>
	*build the source and install process daemon and configuration files		*build the source and install process daemon and configuration files

89.52.254.203 at 10:29, 21 October 2006

89.52.254.203 — Sat, 21 Oct 2006 10:29:23 GMT

← Older revision		Revision as of 10:29, 21 October 2006
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	== Description ==		== Description ==
-	'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[mc_ctld]] ([[LS2]]) daemons.	+	'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[Information/MIPSelAVR#mc_ctld\|mc_ctld]] ([[LS2]]) daemons.

	avr_evtd is a simple and small user space interface to the Linkstation [[AVR]] micro-controller (note: technically, the LS2 doesn't contain an AVR, but avr_evtd, works with the LS2, too). It doesn't have a lot of special features, but it's main task is to provide 'keep-alive' messages to the Linkstation's on-board AVR device. This device controls/monitors the fan, various LEDs, timed power up and two buttons. This daemon provides the necessary initialisation to the device and also stimulates the LEDs depending on various fault conditions. It also monitors a power button (located at the front) and a reset button (located at the rear).		avr_evtd is a simple and small user space interface to the Linkstation [[AVR]] micro-controller (note: technically, the LS2 doesn't contain an AVR, but avr_evtd, works with the LS2, too). It doesn't have a lot of special features, but it's main task is to provide 'keep-alive' messages to the Linkstation's on-board AVR device. This device controls/monitors the fan, various LEDs, timed power up and two buttons. This daemon provides the necessary initialisation to the device and also stimulates the LEDs depending on various fault conditions. It also monitors a power button (located at the front) and a reset button (located at the rear).

89.52.254.203 at 10:28, 21 October 2006

89.52.254.203 — Sat, 21 Oct 2006 10:28:34 GMT

← Older revision		Revision as of 10:28, 21 October 2006
Line 2:		Line 2:

	== Description ==		== Description ==
-	'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'.	+	'''avr_evtd''' is an operating system daemon and should be started from /etc/init.d or /usr/local/sbin. It will return immediately, so you don't need to start it with '&'. It can replace the propritary [[ppc_uartd]] ([[LS1]]) and [[mc_ctld]] ([[LS2]]) daemons.

-	avr_evtd is a simple and small user space interface to the Linkstation AVR micro-controller. It doesn't have a lot of special features, but it's main task is to provide 'keep-alive' messages to the Linkstation's on-board AVR device. This device controls/monitors the fan, various LEDs, timed power up and two buttons. This daemon provides the necessary initialisation to the device and also stimulates the LEDs depending on various fault conditions. It also monitors a power button (located at the front) and a reset button (located at the rear).	+	avr_evtd is a simple and small user space interface to the Linkstation [[AVR]] micro-controller (note: technically, the LS2 doesn't contain an AVR, but avr_evtd, works with the LS2, too). It doesn't have a lot of special features, but it's main task is to provide 'keep-alive' messages to the Linkstation's on-board AVR device. This device controls/monitors the fan, various LEDs, timed power up and two buttons. This daemon provides the necessary initialisation to the device and also stimulates the LEDs depending on various fault conditions. It also monitors a power button (located at the front) and a reset button (located at the rear).

	avr_evtd searches for a configuration file located within the /etc/melco at start-up time. If this file does not exist, then it reverts to reading the file located at /etc/default/avr_evtd. Additionally, it periodically checks the root /dev/hda1 partition and the user data partition /dev/hda3 to ensure they are mounted. Also, if requested, it will determine if sufficient space remains and if not then the AVR is requested to illuminate the DISK LED. This periodic checking also takes place on the configuration files. If they are deemed to have been updated, then the daemon will respond accordingly.		avr_evtd searches for a configuration file located within the /etc/melco at start-up time. If this file does not exist, then it reverts to reading the file located at /etc/default/avr_evtd. Additionally, it periodically checks the root /dev/hda1 partition and the user data partition /dev/hda3 to ensure they are mounted. Also, if requested, it will determine if sufficient space remains and if not then the AVR is requested to illuminate the DISK LED. This periodic checking also takes place on the configuration files. If they are deemed to have been updated, then the daemon will respond accordingly.

Lb worm: /* Files */

Lb worm — Sat, 16 Sep 2006 09:50:45 GMT

Files

← Older revision		Revision as of 09:50, 16 September 2006
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	== Files ==		== Files ==
		+
		+	The following files are used by the avr_evtd daemon:
		+	* /etc/default/avr_evtd
		+	* /etc/avr_evtd/EventScript
		+	* /etc/avr_evtd/emergency_eth0
		+	* $LOG/avr_evtd.log (default is /var/log/avr_evtd/log)
		+
		+	The '''/etc/default/avr_evtd''' is the configuration file, as descibed in the setup.
		+
		+	The next file, '''EventScript''', is what is invoked by the daemon on an event. This being a
		+	button and/or action event request. This is described below and is scripted in this
		+	fashion to allow users to perform any other desired action following the event.
		+
		+	The next file, '''emergency_eth0''', is used to configure the ethernet device if the reset
		+	button is double pressed. This establishes an EM IP of 192.168.11.150 and also requests
		+	a DHCP server.
		+
		+	The log file, whose directory is specified by the '''LOG''' entry in the configuration file
		+	and is enabled by setting '''DEBUG=ON''' records all the events.

	== Event Handling ==		== Event Handling ==