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CONFIG_USB_PHY:

General informations

The Linux kernel configuration item CONFIG_USB_PHY has multiple definitions:

found in drivers/usb/phy/Kconfig

The configuration item CONFIG_USB_PHY:

Help text

(none)

USB Physical Layer drivers found in drivers/usb/phy/Kconfig

The configuration item CONFIG_USB_PHY:

Help text

Most USB controllers have the physical layer signalling part (commonly called a PHY) built in. However, dual-role devices (a.k.a. USB on-the-go) which support being USB master or slave with the same connector often use an external PHY.

The drivers in this submenu add support for such PHY devices. They are not needed for standard master-only (or the vast majority of slave-only) USB interfaces.

If you're not sure if this applies to you, it probably doesn't; say N here.

Hardware

PCI

Numeric ID (from LKDDb) and names (from pci.ids) of recognized devices:

USB

Numeric ID (from LKDDb) and names (from usb.ids) of recognized devices: