Re: [Gumstix-users] Reset By Software

[Jim K. <jim...@ya...>]

Thanks,

We need to do remote monitoring/control, so the ability to reliably
reset from miles away is important.


--- Dave Hylands <dhy...@gm...> wrote:

> Hi guys,
> 
> > Two ways I can think of:
> >
> > 1. system("reboot")
> 
> This is probably better than the watchdog timer (in that you get an
> orderly shutdown), but isn't guaranteed to succeed. The watchdog
> timer
> is more like pressing the reset button, which may cause loss of data.
> 
> > 2. load the watchdog monitor, then open /dev/watchdog, write a byte
> > to it, and wait for the timeout to reset you.
> 
> You should probably do both. Write the byte to the watchdog device,
> and then issue the system ("reboot" ) command. If the reboot command
> hangs or otherwise fails, then the watchdog will do a hardware reset.
> 
> -- 
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
> 
>
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