On Tue, Mar 19, 2013 at 05:26:26PM +0000, Pádraig Brady wrote: > On 03/10/2013 11:14 PM, Guenter Roeck wrote: > > It is unnecessary to enable the logical device and WDT0 each time > > the watchdog is accessed. Do it only once during initialization. > > Is this also the case on systems where the superio > chip is used for other things? I've the impression > that this may break some systems (though I no longer > have the hardware to test). Arbitration of multiple > users of the superio device may be managed be a central > user space app, or by a kernel level arbitrator. > Not sure if I understand you correctly. You mean some entity might actually disable the watchdog between accesses to it by the watchdog driver ? That would make it pretty useless. Might as well turn it off entirely if that is the case. Or do you refer to _selecting_ the hwmon logical device ? If so, this patch is about enabling it only once, not about selecting it only once. Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
