> Hmm, you shouldn't be getting the "did not claim interface" errors...does > your device by chance have more than one configuration and/or multiple > interface alternate settings? > > As far as the data, you can pass the parameter > -DJAVAX_USB_MSG_LEVEL=DEBUG3 to java to enable JNI debugging, which should > show you all the data going back and forth...do you see the incoming data > there? Also, are you submitting an empty (correctly-sized) buffer to the > input pipe? You have to do that (submit a buffer) to actually get data. > And if you are expecting an amount of data in a multiple of > bMaxPacketSize, use a buffer no larger than that. For example if you > expect exactly bMaxPacketSize bytes, use a buffer exactly that size. > Otherwise the buffer may remain "pending" waiting to be filled up with > more data.
Hi, thanks for that fast response. Ok, I passed the -DJAVAX_USB_MSG_LEVEL=DEBUG3 to java and here is the output of my program: Benjamin:/home/benni/jbproject/jRDC-tool/classes # java -DJAVAX_USB_MSG_LEVEL=DEBUG3 jrdc.rdc7 LOG:[hotplug](2) JavaxUsbTopologyListener.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeTopologyListener[58] Got topology change event. LOG:[hotplug](3) JavaxUsbTopologyUpdater.c.build_device[116] Building device /proc/bus/usb/001/001 LOG:[hotplug](3) JavaxUsbTopologyUpdater.c.build_device[141] Device is hub with 2 ports LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_device[156] Device speed is 12 Mbps LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_config[225] Building config 1 LOG:[hotplug](4) JavaxUsbActive.c.isConfigActive[259] Checking config 1 using GET_CONFIGURATION standard request. LOG:[hotplug](4) JavaxUsbActive.c.config_ask_device[197] Active device configuration is 1 LOG:[hotplug](4) JavaxUsbActive.c.isConfigActive[261] Device returned active. LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_interface[287] Building interface 0 LOG:[hotplug](4) JavaxUsbActive.c.isInterfaceSettingActive[287] Checking interface 0 setting 0 using GET_INTERFACE standard request. LOG:[hotplug](1) JavaxUsbActive.c.interface_ask_device[239] Could not get active interface 0 setting from device : -16 LOG:[hotplug](4) JavaxUsbActive.c.isInterfaceSettingActive[289] Device returned failure. LOG:[hotplug](4) JavaxUsbActive.c.isInterfaceSettingActive[294] Checking interface 0 setting 0 using /proc/bus/usb/devices. LOG:[hotplug](4) JavaxUsbActive.c.interface_use_devices_file[112] Checking /proc/bus/usb/devices LOG:[hotplug](4) JavaxUsbActive.c.interface_use_devices_file[134] Found section for device Bus=01/Dev#= 1 LOG:[hotplug](4) JavaxUsbActive.c.isInterfaceSettingActive[296] /proc/bus/usb/devices returned inactive. LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_endpoint[302] Building endpoint 0x81 LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_device[189] Building device 5 attached to port 1 LOG:[hotplug](3) JavaxUsbTopologyUpdater.c.build_device[116] Building device /proc/bus/usb/001/005 LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_device[156] Device speed is 12 Mbps LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_config[225] Building config 1 LOG:[hotplug](4) JavaxUsbActive.c.isConfigActive[259] Checking config 1 using GET_CONFIGURATION standard request. LOG:[hotplug](4) JavaxUsbActive.c.config_ask_device[197] Active device configuration is 1 LOG:[hotplug](4) JavaxUsbActive.c.isConfigActive[261] Device returned active. LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_interface[287] Building interface 0 LOG:[hotplug](4) JavaxUsbActive.c.isInterfaceSettingActive[287] Checking interface 0 setting 0 using GET_INTERFACE standard request. LOG:[hotplug](4) JavaxUsbActive.c.interface_ask_device[241] Active interface 0 setting is 0 LOG:[hotplug](4) JavaxUsbActive.c.isInterfaceSettingActive[289] Device returned active. LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_endpoint[302] Building endpoint 0x82 LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_endpoint[302] Building endpoint 0x02 LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_endpoint[302] Building endpoint 0x81 LOG:[hotplug](4) JavaxUsbTopologyUpdater.c.build_endpoint[302] Building endpoint 0x01 com.ibm.jusb.UsbHubImp Found Ricoh RDC-7 LOG:[default](3) JavaxUsb.h.open_device[216] Opening node /proc/bus/usb/001/005 LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[75] Got Request LOG:[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[124] Submitting Request. LOG:[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[142] Submitting ClaimInterface Request. LOG:[default](2) JavaxUsbInterfaceRequest.c.claim_interface[46] Claiming interface 0 LOG:[default](2) JavaxUsbInterfaceRequest.c.claim_interface[55] Claimed interface 0 LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[78] Completed Request Endpoint1(in): Direction IN, transfer type bulk Endpoint2(out): Direction OUT, transfer type bulk Pipe IN opened Pipe OUT opened Frame[] = 10 02 31 03 00 00 00 10 03 c6 a7 05 00 LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[75] Got Request LOG:[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[124] Submitting Request. LOG:[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[128] Submitting Pipe Request. LOG:[xfer](4) JavaxUsbPipeRequest.c.pipe_request[63] Submitting URB LOG:[xfer](5) JavaxUsb.h.debug_urb[275] bulk_pipe_request : URB endpoint = 2 LOG:[xfer](5) JavaxUsb.h.debug_urb[276] bulk_pipe_request : URB status = 0 LOG:[xfer](5) JavaxUsb.h.debug_urb[277] bulk_pipe_request : URB signal = 0 LOG:[xfer](5) JavaxUsb.h.debug_urb[278] bulk_pipe_request : URB buffer length = 13 LOG:[xfer](5) JavaxUsb.h.debug_urb[279] bulk_pipe_request : URB actual length = 0 LOG:[xfer](2) JavaxUsb.h.debug_urb[285] bulk_pipe_request : URB data = 10 02 31 03 00 00 00 10 03 c6 a7 05 00 LOG:[xfer](4) JavaxUsbPipeRequest.c.pipe_request[76] Submitted URB LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[78] Completed Request LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[90] Got completed URB LOG:[xfer](4) JavaxUsbPipeRequest.c.complete_pipe_request[114] Completing URB. LOG:[xfer](5) JavaxUsb.h.debug_urb[275] complete_pipe_request : URB endpoint = 2 LOG:[xfer](5) JavaxUsb.h.debug_urb[276] complete_pipe_request : URB status = 0 LOG:[xfer](5) JavaxUsb.h.debug_urb[277] complete_pipe_request : URB signal = 0 LOG:[xfer](5) JavaxUsb.h.debug_urb[278] complete_pipe_request : URB buffer length = 13 LOG:[xfer](5) JavaxUsb.h.debug_urb[279] complete_pipe_request : URB actual length = 13 LOG:[xfer](2) JavaxUsb.h.debug_urb[285] complete_pipe_request : URB data = 10 02 31 03 00 00 00 10 03 c6 a7 05 00 LOG:[xfer](4) JavaxUsbPipeRequest.c.complete_pipe_request[127] Completed URB. LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[94] Finished completed URB Waiting for response[], size: 2 <-- here I expect 10 06 as incoming data, because this the acknowledge isClaimed() = true LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[75] Got Request LOG:[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[124] Submitting Request. LOG:[xfer](5) JavaxUsbDeviceProxy.c.submitRequest[128] Submitting Pipe Request. LOG:[xfer](4) JavaxUsbPipeRequest.c.pipe_request[63] Submitting URB LOG:[xfer](5) JavaxUsb.h.debug_urb[275] bulk_pipe_request : URB endpoint = 82 LOG:[xfer](5) JavaxUsb.h.debug_urb[276] bulk_pipe_request : URB status = 0 LOG:[xfer](5) JavaxUsb.h.debug_urb[277] bulk_pipe_request : URB signal = 0 LOG:[xfer](5) JavaxUsb.h.debug_urb[278] bulk_pipe_request : URB buffer length = 2 LOG:[xfer](5) JavaxUsb.h.debug_urb[279] bulk_pipe_request : URB actual length = 0 LOG:[xfer](2) JavaxUsb.h.debug_urb[285] bulk_pipe_request : URB data = 00 00 LOG:[xfer](4) JavaxUsbPipeRequest.c.pipe_request[76] Submitted URB LOG:[xfer](4) JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDeviceProxy[78] Completed Request Getötet Benjamin:/home/benni/jbproject/jRDC-tool/classes # response[] is an empty buffer, created with "byte[] response = new byte[2];" (my bMaxPacketSize is 16), this should be ok, isn't it? also myConfig.getUsbInterfaces().size()=1 and dev.getUsbConfigurations().size()=1, so that you mean with "does your device by chance have more than one configuration and/or multiple interface alternate settings?" I also tested also another usb implementation for java, jusb, and got the same result: I can send data to the device, but not get some. So, what can I do? ------------------------------------------------------- This SF.net email is sponsored by: Etnus, makers of TotalView, The best thread debugger on the planet. Designed with thread debugging features you've never dreamed of, try TotalView 6 free at www.etnus.com. _______________________________________________ javax-usb-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/javax-usb-devel
