A comment on the current status: I've received reply from Alan Stern (Linux USB developer), essentially asking us to continue the earlier experiments (see my post above). As time permits I'll play around with the suggested workaround (additional udelay), and see whether it can be tweaked (and still work!) so that it may fit into the upstream code.
If you can compile a kernel, *you* can help by testing the workarounds in http://marc.info/?l=linux-kernel&m=125622034713518&w=2 and http://marc.info/?l=linux-usb&m=125628206801242&w=2 (the standard Ubuntu kernel source should be a sufficient base for patching) and see how far we can get the udelay down to (target is <= 50 microsecs) with keeping the stack still alive. Once I have a easy patch myself I 'll post this here. we should then get back to the USB developers (and the UVC guys) with our results so that they can take appropriate action. (BTW: I'm not affiliated with Canonical in any way.) -- regression: uvcvideo module makes "cannot reset port" error on usb with bison webcam (5986:0203): USB and suspend fails https://bugs.launchpad.net/bugs/435352 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
