3Com devices

configname: CONFIG_NET_VENDOR_3COM

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>EISA support
└─>PCI support
└─>3Com devices
In linux kernel since version 2.6.12  
If you have a network (Ethernet) card belonging to this class, say Y.

Note that the answer to this question doesn't directly affect the
kernel: saying N will just cause the configurator to skip all
the questions about 3Com cards. If you say Y, you will be asked for
your specific card in the following questions.