On Jul 23, 2013, at 8:03 AM, Alan Stern <st...@rowland.harvard.edu> wrote:
> On Mon, 22 Jul 2013, Nathan Hjelm wrote: > >>> In Linux, when a device connects there are no special notifications for >>> each transfer. Pending transfers are automatically cancelled by the >>> kernel, and they complete in the usual way but with a status code of >>> -ENODEV. In addition, the kernel refuses to accept new transfer >>> submissions. >> >> Ok, so how about this: >> >> 1) Remove the code from hotplug.c:195-207 since the completion >> callbacks are redundant. We will get them from the backend in both >> the Linux and OSX case. We can revisit when Windows hotplug support >> is added. >> >> 2) Make libusb_submit_transfer reference the device and >> usbi_handle_transfer_completion dereference the device. > > That seems reasonable. But you also have to make sure, once you know a > device has been disconnected, that you don't accept any more transfers > for that device. Maybe the code already does this; I haven't looked. That code is already in place so it should be good with the patch in: https://github.com/hjelmn/libusbx OP: can you try my repo and let me know if it resolves the issues for you? If you can also test on Linux that would be great. -Nathan ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
