Hello Jan, Thank you for the answer and the help!
I understand this so: owfs does not knows on which bus a device is connected (only it is cached). when I access with /<ADDRESS> owfs must check all buses where this decvice is connected. This maybe a problem for the w1-kernel-modul, when I use more than one bus-master. When I access with /<BUS>/<ADDRESS> owfs access only to this one bus, without checking presence/reset the bus. This mean, it is always better to access over /<BUS>/<ADDRESS>, in order to avoid problems with w1-kernel-modul and also for the performance. Thank you verry much for the help, to understand this behavior best regards eni On 05.11.2016 22:31, Jan Kandziora wrote: > Am 05.11.2016 um 21:54 schrieb Enrico Hoepfner: >> Hello Jan, >> >> Thank you for the answer! >> >> I have 4 buses because >> 1) DS18B20 an DS2408 need different pullup-resistors >> > How? Both should be fine with 1.5k to 3.3V. > > >> 2) the 4 buses goes to different locations >> > Star topology. Okay. > > >> I dont understand why owfs is checking presence of the device of all >> buses - seems like owserver has forgotten where the device is connected >> and check all buses, if there is presence this one. >> > This is a deliberate choice. Owfs does not remember where a device was > connected. Because it could have been moved since last access. It's up > to the application to keep track. > > Kind regards > > Jan > > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today. http://sdm.link/xeonphi > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
