NOP USB Transceiver Driver

modulename: phy-generic.ko

and/or

nop-usb-xceiv.ko

configname: CONFIG_NOP_USB_XCEIV

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>USB Physical Layer drivers
└─>NOP USB Transceiver Driver
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
This driver is to be used by all the usb transceiver which are either
built-in with usb ip or which are autonomous and doesn't require any
phy programming such as ISP1x04 etc.

source code: