1. 根目录:
2. drivers
3. usb
4. phy
5. Makefile

#
# Makefile for physical layer USB drivers
#
obj-$(CONFIG_USB_PHY)			+= phy.o
obj-$(CONFIG_OF)			+= of.o
obj-$(CONFIG_USB_OTG_WAKELOCK)		+= otg-wakelock.o
obj-$(CONFIG_DUAL_ROLE_USB_INTF)	+= class-dual-role.o

# transceiver drivers, keep the list sorted

obj-$(CONFIG_AB8500_USB)		+= phy-ab8500-usb.o
obj-$(CONFIG_FSL_USB2_OTG)		+= phy-fsl-usb.o
obj-$(CONFIG_ISP1301_OMAP)		+= phy-isp1301-omap.o
obj-$(CONFIG_NOP_USB_XCEIV)		+= phy-generic.o
obj-$(CONFIG_TAHVO_USB)			+= phy-tahvo.o
obj-$(CONFIG_AM335X_CONTROL_USB)	+= phy-am335x-control.o
obj-$(CONFIG_AM335X_PHY_USB)		+= phy-am335x.o
obj-$(CONFIG_OMAP_OTG)			+= phy-omap-otg.o
obj-$(CONFIG_SAMSUNG_USBPHY)		+= phy-samsung-usb.o
obj-$(CONFIG_TWL6030_USB)		+= phy-twl6030-usb.o
obj-$(CONFIG_USB_EHCI_TEGRA)		+= phy-tegra-usb.o
obj-$(CONFIG_USB_GPIO_VBUS)		+= phy-gpio-vbus-usb.o
obj-$(CONFIG_USB_ISP1301)		+= phy-isp1301.o
obj-$(CONFIG_USB_MSM_OTG)		+= phy-msm-usb.o
obj-$(CONFIG_USB_QCOM_8X16_PHY)	+= phy-qcom-8x16-usb.o
obj-$(CONFIG_USB_MV_OTG)		+= phy-mv-usb.o
obj-$(CONFIG_USB_MXS_PHY)		+= phy-mxs-usb.o
obj-$(CONFIG_USB_RCAR_PHY)		+= phy-rcar-usb.o
obj-$(CONFIG_USB_ULPI)			+= phy-ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)		+= phy-ulpi-viewport.o
obj-$(CONFIG_KEYSTONE_USB_PHY)		+= phy-keystone.o