On Mon, 19 Jan 2009, John Kasunich wrote:

> Date: Mon, 19 Jan 2009 17:39:25 -0500
> From: John Kasunich <jmkasun...@fastmail.fm>
> Reply-To: "Enhanced Machine Controller (EMC)"
>     <emc-users@lists.sourceforge.net>
> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
> Subject: Re: [Emc-users] Mesa 5i23 and 7i37 I/O problem
> 
> Peter C. Wallace wrote:
>
>> I think with the current driver, the watchdog cannot be disabled, probably a
>> good thing...
>
> Seb and I were discussing that on IRC one evening.  I think I convinced
> him that it would be nice if the watchdog slept quietly without being
> petted, until you "arm" it by setting timeout-ns to some non-zero value.
>
> Sometimes you just want to be able to test stuff - manually set a DAC
> output to some voltage, then check with a voltmeter, or manually turn a
> general purpose output on and off.  Arming the watchdog as soon as the
> driver loads makes that impossible.
>
> I don't know if that the driver has been changed to let the dog sleep,
> and if so, whether that change is in the released 2.2.8, or only on CVS
> trunk.

Sure, just documenting the existing behaviour (of 2.2.8 - what Donnie has)

Theres no mention of watchdog disable in the manual in any case.

Setting the timeout value to 0 gets a illegal timeout value error
(at least with 2.2.8)



>
> Regards,
>
> John Kasunich
>
>
>
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Peter Wallace
Mesa Electronics

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