Well before looking into anything else - are you sure you are setting
configuration 0? Becasue config 0 disables (un-configures) the device.
Once you do that you shouldn't be able to use it at all, so I assume you
meant config 1.
The error is -ENOENT which basically means "there is no endpoint 2" which
is very strange. When your device is connected, what does the file
/proc/bus/usb/devices look like?
On Sat, 18 Sep 2004, Jenks, Robert wrote:
>I need some pointers... I'm trying to use javax-usb for the first time
>and I'm running into a brick wall. I'm trying to talk to a new device
>we're building.
>
>
>
>Here is the flow:
>
>
>
>I am able to traverse the USB device lists and find our new device by
>it's VendorID/ProductID.
>
>I set configuration 0 (this works fine)
>
>I get the list of interfaces and only find 1 (which is correct)
>
>I claim interface 1
>
>I am able to determine that interface 1 has two endpoints (one bulk IN
>and one bulk OUT)
>
>I am able to open a pipe on endpoint 2 (OUT)
>
>I create an IRP with a size of 32 (MaxPacketSize is 64) new
>DefaultUsbIrp(new byte[] {...});
>
>I then call pipe.syncSubmit(irp)
>
>
>
>
>
>LOG:[xfer](4) JavaxUsbPipeRequest.c.pipe_request[63] Submitting URB
>
>bulk_pipe_request : URB endpoint = 2
>
>bulk_pipe_request : URB status = 0
>
>bulk_pipe_request : URB signal = 0
>
>bulk_pipe_request : URB buffer length = 32
>
>bulk_pipe_request : URB actual length = 0
>
>bulk_pipe_request : URB data = ...
>
>LOG:[xfer](1) JavaxUsbPipeRequest.c.pipe_request[74] Could not submit
>URB (errno -2)
>
>LOG:[xfer](4)
>JavaxUsbDeviceProxy.c.Java_com_ibm_jusb_os_linux_JavaxUsb_nativeDevicePr
>oxy[78] Completed Request
>
>javax.usb.UsbException: Error submitting IRP : Submission aborted
>
> at
>com.ibm.jusb.os.linux.LinuxPipeRequest.completeUsbIrp(LinuxPipeRequest.j
>ava:84)
>
> at
>com.ibm.jusb.os.linux.LinuxPipeRequest.setCompleted(LinuxPipeRequest.jav
>a:74)
>
> ...
>
>
>
>Any ideas???
>
>
>
>-Robert
>
>
--
Dan Streetman
[EMAIL PROTECTED]
---------------------
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