Re: [Owfs-developers] Concurrency issues?

[Jan K. <jj...@gm...>]

Am 24.05.2016 um 18:02 schrieb Guy COLIN:
> 
> Ok I'll update to owfs-3.1p1.
>
Ah, for the 3.16rc and later kernels that's only necessary if you use
--w1 instead of accessing I²C directly. Sorry for the confusion. The
ds2482 kernel module is not loaded, so it seems all ok.

However, there are a number of other bugs fixed in 3.1p1 as well, so
updating may a good decision anyways.


> I know the difference but I'm ok this way, I let owserver 
> update the cache.
>
Oh, you misunderstood. Reading from /uncached means the cache is not
considered, but instead a fresh sample is taken.

The cache is *always* updated after taking a sample.


> And each time a device disappear I check in the uncached 
> directory: it's also disappeared.
>
You cannot debug the bus this way. If you don't read *uncached*, owfs
doesn't do anything on the bus but read the cache instead until it
expires. So you get a one new directory sample every 60 seconds.

No wonder you have so few errors.


Kind regards

	Jan