Ah, multi-setting interface with isoc endpoint(s)... EINVAL (-22) is unfortunately the usbfs interface's generic error. There are plenty of different reasons why the kernel would reject a URB with that error, so it's very hard to tell what specifically the kernel didn't like. Can you send a full JNI trace to me, and also the output of "lsusb -v"?
On Wed, 20 Apr 2005, Charles Chen wrote: >Dan, >Here is the trace with urb enabled. Why do i get all those zeros? Thanks for >your help. > >[default](3) JavaxUsbInterfaceRequest.c.claim_interface[96] Claimed >interface 2 >[xfer](2) >JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[78] > >Completed Request >[xfer](2) >JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[75] > >Got Request >[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[127] Submitting Request. >[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[135] Submitting SetInterface >Request. >[xfer](3) JavaxUsbControlRequest.c.set_interface[177] Setting interface 2 to >setting 1 >[xfer](3) JavaxUsbControlRequest.c.set_interface[186] Set interface >[xfer](2) >JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[78] > >Completed Request >[xfer](2) >JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[75] > >Got Request >[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[127] Submitting Request. >[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[131] Submitting Pipe Request. >[xfer](2) JavaxUsbPipeRequest.c.pipe_request[62] Submitting URB >[urb](2) JavaxUsb.h.debug_urb[273] isochronous_pipe_request : URB endpoint = >84 status = 0 signal = 0 >[urb](2) JavaxUsb.h.debug_urb[274] isochronous_pipe_request : URB buffer >length = 50 actual length = 0 >[urb](3) JavaxUsb.h.debug_urb[288] isochronous_pipe_request : URB data = 00 >00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >[xfer](1) JavaxUsbPipeRequest.c.pipe_request[73] Could not submit URB (errno >-22) >[xfer](2) >JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[78] > >Completed Request >Error in recording data: Error submitting IRP : Invalid >[hotplug](3) JavaxUsbTopologyUpdater.c.build_device[112] Building device >/proc/bus/usb/001/001 > >Charles > >_________________________________________________________________ >Is your PC infected? Get a FREE online computer virus scan from McAfeeŽ >Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > > >------------------------------------------------------- >This SF.Net email is sponsored by: New Crystal Reports XI. >Version 11 adds new functionality designed to reduce time involved in >creating, integrating, and deploying reporting solutions. Free runtime info, >new features, or free trial, at: http://www.businessobjects.com/devxi/728 >_______________________________________________ >javax-usb-devel mailing list >javax-usb-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/javax-usb-devel > -- Dan Streetman [EMAIL PROTECTED] --------------------- 186,272 miles per second: It isn't just a good idea, it's the law! ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=click _______________________________________________ javax-usb-devel mailing list javax-usb-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/javax-usb-devel
