From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: To: Guenter Roeck , , Dirk.Behme From: fixed-term.Oleksij.Rempel Subject: watchdoug group ping Message-ID: <57172B7C.4060407@de.bosch.com> Date: Wed, 20 Apr 2016 09:10:52 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit List-ID: Hallo all, my target is to provide pretimout support for devices which do not have this functionality. Pre-requirement is this patchset (i contacted the author to rebase it against latest watchdog core branch): https://www.mail-archive.com/linux-watchdog@vger.kernel.org/msg02394.html The idea is to use different watchdogs/timers or what ever as one group - one virtual device. One driver will be responsible for reseting the system, other for generating an interrupt on pre-timout. It can be also useful for systems which require redundant watchdogs - two or more watchdog pinged over one /dev/watchdog I assume i would need to create a master virtual watchdog driver to bypass/broadcast all pings to child devices. Do you have some ideas or suggestions? -- Best regards, Oleksij Rempel CM-AI/ECO3 Tel.: +49(5121)49-2962