From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from main.suntel-lems.ro (root@main.suntel-lems.ro [194.102.106.1]) by puffin.external.hp.com (8.9.3/8.9.3) with ESMTP id AAA18063 for ; Wed, 22 Nov 2000 00:34:42 -0700 Message-ID: <006001c05456$febb1cd0$6811620a@sigxcpu> From: "Alexandru Pirvulescu" To: "Alex deVries" , "Grant Grundler" Cc: References: <200011211855.KAA20167@milano.cup.hp.com> <3A1B2F27.D08EC2AF@linuxcare.com> Subject: Re: [parisc-linux] case LEDs Date: Wed, 22 Nov 2000 09:36:58 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" List-ID: I think that the heartbeat LED is software because it starts with the kernel boot and if the kernel stops the LED stops blinking too. Is better to implement a software monitoring tool because you have to watch the software for hanging. Alex PS. There is a function in the kernel source in linux/arch/parisc/kernel/process.c named machine_heartbeat(). Any connection with the heartbeat from the chassis? ----- Original Message ----- From: "Alex deVries" To: "Grant Grundler" Cc: "Alexandru Pirvulescu" ; Sent: Wednesday, November 22, 2000 4:27 AM Subject: Re: [parisc-linux] case LEDs > Grant Grundler wrote: > > Yes. > > I was already asked this weekend to dig up technical info on LED > > and soft power control. I guess this is my reminder to do that. :^) > > Isn't there a PDC call (pdc_chassis?) to do this? Or is the heartbeat > LED done by hardware? > > - Alex > > -- > Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare > 613.562.2759 tel > alex@linuxcare.com, http://www.linuxcare.com/ > Linuxcare, Support for the revolution. > >