Wander Lairson Costa wrote: Hi
> Sorry for the delay. According to libusb documentation, a pipe error > is related to sending a control request not supported by the device. > Are these control transfers documented by the manufacturer or part of > the USB class spec? According to documentation this chip is a usb printer class device ( http://www.krn.ru/Support/Docs/GMUP/ds_pl2305_v11.pdf ). Section 5.2 (Printer Class-Specific Device Requests) in this spec tells that GET_PORT_STATUS and SOFT_RESET are supported. <cut> Regards Perf PS The device looks similar to this one: http://4.bp.blogspot.com/_4LDU1lTHcHg/TNaYYAKPvDI/AAAAAAAAHV0/CbNRUy9-CL0/s1600/100_6848.JPG ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
