USBPUSH ERROR

Nitin
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I'm working on MINI2440 and building a custom OS for it using buildroot,
but for testing purpose I'm using OS downloaded from official website. So
the problem is, I'm using usbpush to push OS images in MINI2440 through
USB, but it popups the message when I enter below commond

    sudo ./usbpush supervivi-128M 0x30008000

    Unable to claim usb interface 1 of device: could not claim interface 0:
Device or resource busy

I don't understand one concept that, whenever I assign executable
permission to usbpush, it runs automatically in background. It's clearly
seen below

    ps -ef | grep usb*

    silicod+ 2431 2207 0 10:25 pts/10 00:00:00 grep --color=auto usbpush

I tried to kill using

    sudo kill -9 2431

But it creates new pid and again run itself in background. I tried googling
but nothing works for me.

Can any one has same problem, Please help me out