SMSC LAN75XX based USB 2.0 gigabit ethernet devices

modulename: smsc75xx.ko

configname: CONFIG_USB_NET_SMSC75XX

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>USB Network Adapters
└─>SMSC LAN75XX based USB 2.0 gigabit ethernet devices
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
This option adds support for SMSC LAN75XX based USB 2.0
Gigabit Ethernet adapters.

source code:
drivers/net/usb/smsc75xx.c