2013/12/4 Bartosz Alchimowicz <p...@poczta.onet.pl>: > Wander Lairson Costa wrote: >> >> 2013/12/2 Bartosz Alchimowicz<p...@poczta.onet.pl>: >>> >>> 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. >>> >> >> This sounds weird. I will review the PyUSB code to see if I find some >> mistake. > > > Thanks! > > > >> BTW, did notice if the usbprint driver gets loaded when you >> connected your device? It might be causing the problems... > > > I have blacklisted usblp. > > Below are loaded modules (concerning usb): > > usbhid 31554 0 > hid 60152 1 usbhid > btusb 17278 2 > bluetooth 103791 23 btusb,rfcomm,bnep > usbnet 17699 1 cdc_ncm > mii 12595 1 usbnet > usbcore 104555 10 > ehci_hcd,xhci_hcd,cdc_acm,cdc_wdm,usbnet,cdc_ncm,uvcvideo,btusb,usbhid > usb_common 12338 1 usbcore > > Regards > Perf
I will try to simulate the issue, but it willl take quite some time. What happens if you issue a GET_PORT_STATUS right after the set_configuration call? -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
