Re: [RFC/PATCH 0/22] W1: sysfs, lifetime and other fixes

Evgeniy Polyakov
2005-04-25T09:11:04Z

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On Thu, 2005-04-21 at 11:09 -0500, Dmitry Torokhov wrote:
> One more thing...
>
> On 4/21/05, Evgeniy Polyakov <johnpol@2ka.mipt.ru> wrote:
> > On Thu, 2005-04-21 at 02:07 -0500, Dmitry Torokhov wrote:
> >
> > > w1-master-drop-attrs.patch
> > > Get rid of unneeded master device attributes:
> > > - 'pointer' and 'attempts' are meaningless for userspace;
> > > - information provided by 'slaves' and 'slave_count' can be gathered
> > > from other sysfs bits;
> > > - w1_slave_found has to be rearranged now that slave_count field is gone.
> >
> > attempts is usefull for broken lines.
>
> It simply increments with every search i.e. every 10 secondsby default
> and does not provide indication of the quality of the wire.

When slaves can not be found until several attempts, it means line
is broken, how many time existing slave appeared/dissapeared during
/sys/bus/w1/devices/w1_master1/attempts says about link quality.

--
Evgeniy Polyakov

Crash is better than data corruption -- Arthur Grabowski

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