Smart card reader detection on Linux

[पारस]

I have a smart card reader called SK-284. It support two communication
methods, RS232 and USB.
In my case only USB is enable. When I connect this device to my Linux
laptop, via USB, It wont get detected. I run '$dmesg' command to check on
which ttyUSB port it get detected, I got following output,

    [ 2321.208330] usb 2-1.2: new full-speed USB device number 7 using
ehci_hcd
    [ 2321.384628] generic-usb 0003:8203:8288.0003: hiddev0,hidraw1: USB
HID v1.10 Device
[\xffffffe6\xffffffb7\xffffffb1\xffffffb7\xffffffb1\xffffffe5\xffffff9c\xffffffb3\xffffff9c\xffffffb3\xffffffe5\xffffff88\xffffff9b\xffffff88\xffffff9b\xffffffe8\xffffff87\xffffffaa\xffffff87\xffffffaa\xffffffe6\xffffff8a\xffffff80\xffffff8a\xffffff80\xffffffe6\xffffff9c\xffffffaf\xffffff9c\xffffffaf\xffffffe6\xffffff9c\xffffff89\xffffff9c\xffffff89\xffffffe9\xffffff99\xffffff90\xffffff99\xffffff90\xffffffe5\xffffff85\xffffffac\xffffff85\xffffffac\xffffffe5\xffffff8f\xffffffb8\xffffff8f\xffffffb8
CRT450  USB 1.1] on usb-0000:00:1d.0-1.2/input0
    [ 2326.634925] usb 2-1.2: USB disconnect, device number 7
    [ 2326.855479] usb 2-1.2: new full-speed USB device number 8 using
ehci_hcd
    [ 2326.954303] usb 2-1.2: config index 0 descriptor too short (expected
9, got 0)
    [ 2326.954310] usb 2-1.2: can't read configurations, error -22
    [ 2327.027211] usb 2-1.2: new full-speed USB device number 9 using
ehci_hcd
    [ 2327.171371] generic-usb 0003:CEA0:2840.0004: hiddev0,hidraw1: USB
HID v1.10 Device
[\xffffffe6\xffffffb7\xffffffb1\xffffffb7\xffffffb1\xffffffe5\xffffff9c\xffffffb3\xffffff9c\xffffffb3\xffffffe5\xffffff88\xffffff9b\xffffff88\xffffff9b\xffffffe8\xffffff87\xffffffaa\xffffff87\xffffffaa\xffffffe6\xffffff8a\xffffff80\xffffff8a\xffffff80\xffffffe6\xffffff9c\xffffffaf\xffffff9c\xffffffaf\xffffffe6\xffffff9c\xffffff89\xffffff9c\xffffff89\xffffffe9\xffffff99\xffffff90\xffffff99\xffffff90\xffffffe5\xffffff85\xffffffac\xffffff85\xffffffac\xffffffe5\xffffff8f\xffffffb8\xffffff8f\xffffffb8
CRT284 USB 1.1] on usb-0000:00:1d.0-1.2/input0

My laptop specification:
OS: Ubuntu 12.04
Kernel: 3.2.0-54-generic-pae

When I connect same device to Windows 7 and run device manager, It got
detected under Human Interface Device (HID). and some test applications are
running fine.

My task is to write a small code on Linux to detect the smart card by
device.
So where do I get to know on which ttyUSB port is used by this device, or
any other method to get connected to this device.

Thanks in advance.
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