Thank you for your reply! On Thu, 26 Sep 2013 01:33:59 +0200 Jan Kandziora <j...@gmx.de> wrote:
> This is near worst-case. You could make it only worse by having some of > these bus-powered. There is no way to have this working reliable. Hm, the Star-rays are only 1-3m long. I thought this would be no problem. Anyway, i have tested another USB Host controller on the raspberry pi with only one direct DS18S20 attached. It shows the same errors after a few minutes while accessing the uncached entrys repeatedly fast. Interestingly on my linux host-pc the same 1-wire controller with it's sensor works flawless. Even the owfs source i compiled from is exactly the same. Again this is what happens: CALL: data.c:(145) Read message CALL: data.c:(104) DataHandler: parse path=uncached/10.557A48010800/temperature CALL: ow_parsename.c:(99) path=[uncached/10.557A48010800/temperature] CALL: data.c:(145) Read message CALL: data.c:(104) DataHandler: parse path=uncached/10.557A48010800/temperature CALL: ow_parsename.c:(99) path=[uncached/10.557A48010800/temperature] CALL: data.c:(145) Read message DATA: ow_ds9490.c:(813) USBsendback control error CONNECT: ow_select.c:(111) Select error for DS18S20 on bus 1:8 CONNECT: ow_select.c:(111) Select error for DS18S20 on bus 1:8 CONNECT: ow_select.c:(111) Select error for DS18S20 on bus 1:8 CONNECT: ow_select.c:(111) Select error for DS18S20 on bus 1:8 CALL: data.c:(104) DataHandler: parse path=uncached/10.557A48010800/temperature CALL: ow_parsename.c:(99) path=[uncached/10.557A48010800/temperature] CALL: data.c:(104) DataHandler: parse path=uncached/10.557A48010800/temperature CALL: ow_parsename.c:(99) path=[uncached/10.557A48010800/temperature] CALL: data.c:(104) DataHandler: parse path=uncached/10.557A48010800/temperature What does "USBsendback control error" mean? At this time there was a syslog entry concerning usb: kernel: [564749.208882] usb 1-1.3.3: usbfs: USBDEVFS_CONTROL failed cmd owserver rqt 64 rq 1 len 0 ret -71 Any ideas? It looks like this failure is related to running owfs on the raspberry? Thanks in advance, Klaus ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
