Wireless LAN Adapter fails to get loaded in RHEL7.

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Issue

I am unable to use the wireless device on RHEL7 system although the devices could be seen in lsusb output:

Bus 001 Device 006: ID 0411:00da BUFFALO INC. (formerly MelCo., Inc.) WLI-U2-KG54L 802.11bg [ZyDAS ZD1211B]

Why certain Buffalo wireless LAN adapter fails to get loaded in RHEL7?
How to make the system detect and load WLI-U2-KG54L USB LAN device?

Environment

Red Hat Enterprise Linux(RHEL)7.0.
Buffalo USB wireless LAN Adapters.

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