On Sun, 27 Oct 2002, David Brownell wrote: > > Unfortunately, when running over HS/TT hub, I didn't manage to get any of > > the sg_list testcases 5-8 working without getting stuck in D-state sooner > > Hmm, odd. Were you still running 2.5.42? I don't think any of
Yes. I had to go back there because anything newer isn't working due to the "hub port unuseable after first disconnect" issue. Note the FX-dev. board is buspowered so I cannot plug it to a different port after firmware download/re-enumeration. > the patches would have caused (or prevented) that, but I was > using more current code. What stuck, and why? Which firmware? I'm not sure what's going on. Nothing in syslog, just waiting for completion forever. I don't see anything post-2.5.42 which might solve this - so if it's working for you with 2.5.44 (have you tried -s 1024 and -s 4096?) it might be even different timing or hardware... > > or later. I had a few occasions where test5 didn't get stuck and then it > > was completed (default test parameters) in 17.5 sec. This compares to > > the 17.0 sec it needs on the same port (NEC) without HS/TT, i.e. with > > companion ohci - no matter with or without hub running at FS in between. > > On an USB-1.1 ohci port (SiS-7001) it takes 16.0 sec for the same test. > > I suspect there's something odd with the interrupt mitigation. > If you feel like experimenting, try commenting out the td_fill() > lines that mask in a TD_DI_SET(6) ... it's sometimes as if the > last TD's 'DI==0' is being ignored. Will try this tomorrow. Martin ------------------------------------------------------- This SF.net email is sponsored by: ApacheCon, November 18-21 in Las Vegas (supported by COMDEX), the only Apache event to be fully supported by the ASF. http://www.apachecon.com _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
