PCI based USB host interface

modulename: pci-quirks.ko

configname: CONFIG_USB_PCI

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>PCI based USB host interface
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Many embedded system SOCs (e.g. freescale T2080) have both
PCI and USB modules with the USB module directly controlled by
registers and having no relationship to the PCI module.

If you have such a device you may say N here and PCI related code
will not be built in the USB driver.

source code: