Hi Guenter, > > Hi Guenter, > > > > Is there an easy way to determine which driver is loaded for each > > /dev/watchdogN device (from a script perspective). > > > > Basically, I wanted to determine the module that needs to be included in > > the kdump initrd image. > > > Sometimes. For example, the iTCO_wdt driver has an entry in /sys/devices, and > /sys/class/watchdog/watchdogX/device points to it. That is not always the > case, > howewver. In my system, for example, the MEI watchdog is active, but there is > nothing I can find that would give me an indication that /dev/watchdog0 > actually > points to the MEI watchdog driver. > > Of course I might be missing something, and there might be some other means > to identify the driver from userspace. Would be great, actually, as I am > having > the same problem.
Only when you set the .parent field in the watchdog_device data you will get the referal in the /sys/class/... tree. In iTCO_wdt.c you have the following code that does that: iTCO_wdt_watchdog_dev.parent = dev->dev.parent; >From the watchdog-kernel-api documentation: * parent: set this to the parent device (or NULL) before calling watchdog_register_device. Kind regards, Wim. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
