Hi,

 Thanks for your suggestion. Well what I wanted is, how to get an access to
an object of UsbInterfacePolicy Interface. (The previous question was a
typo). The reason why I want an object for this class is that, once I can an
instance I can use the forceClaim() function call. Any suggestions?

Sathya
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Subject: javax-usb-devel digest, Vol 1 #182 - 1 msg


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Today's Topics:

   1. Re: interface claim problem (Dan Streetman)

--__--__--

Message: 1
Date: Mon, 14 Jun 2004 01:42:04 -0400 (EDT)
From: Dan Streetman <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: Sathya Peri <[EMAIL PROTECTED]>
cc: [EMAIL PROTECTED]
Subject: Re: [javax-usb-devel] interface claim problem


It sounds like there is already a driver driving your device (in the 2.6
kernel at least).  In the file /proc/bus/usb/devices, if you find your
device, does the I: line say that it has a driver?  If so, you need to
remove the driver if you want to drive it via javax.usb.  If you use the
UsbInterfacePolicy with the forceClaim() option set to true, you can kick
the existing driver off and drive it yourself.  You need a kernel version
2.4.23 or later (including 2.6).

On Thu, 10 Jun 2004, Sathya Peri wrote:

>Hello Everyone,
>
>
>  I installed JSR on my system. I have a USB device Mag-Tek card reader
with
>which Iam trying to communicate using JSR javax.usb. But Iam having problem
>with Interface claim. My device has only one interface under the active
>configuration. Now whenever Iam trying to claim this interface, it is
>failing. The exception that I get is :- Interface claim error:  Device or
>resource busy.
>
>  Iam running this program on Fedora Core relase 2 (Tettnang). My Linux
>kernel version is 2.6.5-1.3.58. But interestingly the same program if I run
>in Mandrake Linux 9.2 and kernel version 2.4.22, it is working. The program
>is able to claim the interface.
>
>  So what do you think I should do? Any suggestions?
>
>Thanks
>Sathya
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