2014-11-11 15:22 GMT-02:00 Richard Bryan <rabr...@lucidsci.com>: > I'm frequently running into an "Access Denied (insufficient permissions)" > errors on Windows 7 (with libusb1 backend) during long-running usb sessions > with a device. When this happens, I call reset() and dispose_resources() on > the usb handle and then attempt to reenumerate it using usb.core.find(), but > the Access Denied error keeps occurring until I unplug and replug the > device. Restarting the program alone doesnt fix it. >
iirc, libusb reset operation is problematic under Windows, so better to avoid it. > I have a multithreaded program, but interaction with pyusb is only ever done > in the same, single thread. > This should not cause problems... > Anyone have any ideas what's going on? Or is this something I should ask > the libusb list about? > Could you please run you program with the environment variable PYUSB_DEBUG=debug defined and report the logs? > Richard > > ------------------------------------------------------------------------------ > Comprehensive Server Monitoring with Site24x7. > Monitor 10 servers for $9/Month. > Get alerted through email, SMS, voice calls or mobile push notifications. > Take corrective actions from your mobile device. > http://pubads.g.doubleclick.net/gampad/clk?id=154624111&iu=/4140/ostg.clktrk > _______________________________________________ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users > -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://pubads.g.doubleclick.net/gampad/clk?id=154624111&iu=/4140/ostg.clktrk _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
