On Mon, 28 Aug 2006, Andreas Jellinghaus wrote: > I tried again on a thinkpad t40p laptop (i.e. 32bit, centrino, ich > chipset, quite common) with kernel 2.6.16.28 and tried seven pieces of > that hardware: > - same problems > + If I try long enough I get all of them to work. > > so this is a sporadic problem in the device and/or linux, I don't have > enough clue to know which one. I tried once more on linux 2.6.17.8 > and after 11 tries in total I had one success on each of the 7 tokens > (quite lucky this time, usualy more of them seem to fail). also it is > not always the same tokens that fail, more like a random thing. > > I will play around with sleeps in my driver, maybe some stupid delay > will heal the tokens. increasing timeout did not help so far. > > thanks for your help. > if you have any suggestions how to debug the problem further, please > let me know. also if anyone is interested, I can spare some tokens.
Other debugging facilities you might want to try include the "usbfs_snoop=y" module option for usbcore and the usbmon facility (explained in Documentation/usb/usbmon.txt). These will show you what Linux thinks is happening at a low level. Alan Stern ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
