# SPDX-License-Identifier: GPL-2.0 # # USB device configuration # config USB_OHCI_BIG_ENDIAN_DESC bool config USB_OHCI_BIG_ENDIAN_MMIO bool config USB_OHCI_LITTLE_ENDIAN bool default n if PPC_MPC52xx default y config USB_EHCI_BIG_ENDIAN_MMIO bool config USB_EHCI_BIG_ENDIAN_DESC bool config USB_UHCI_BIG_ENDIAN_MMIO bool config USB_UHCI_BIG_ENDIAN_DESC bool menuconfig USB_SUPPORT bool "USB support" depends on HAS_IOMEM default y help This option adds core support for Universal Serial Bus (USB). You will also need drivers from the following menu to make use of it. if USB_SUPPORT source "drivers/usb/common/Kconfig" config USB_ARCH_HAS_HCD def_bool y config USB tristate "Support for Host-side USB" depends on USB_ARCH_HAS_HCD select GENERIC_ALLOCATOR select USB_COMMON select NLS # for UTF-8 strings help Universal Serial Bus (USB) is a specification for a serial bus subsystem which offers higher speeds and more features than the traditional PC serial port. The bus supplies power to peripherals and allows for hot swapping. Up to 127 USB peripherals can be connected to a single USB host in a tree structure. The USB host is the root of the tree, the peripherals are the leaves and the inner nodes are special USB devices called hubs. Most PCs now have USB host ports, used to connect peripherals such as scanners, keyboards, mice, modems, cameras, disks, flash memory, network links, and printers to the PC. Say Y here if your computer has a host-side USB port and you want to use USB devices. You then need to say Y to at least one of the Host Controller Driver (HCD) options below. Choose a USB 1.1 controller, such as "UHCI HCD support" or "OHCI HCD support", and "EHCI HCD (USB 2.0) support" except for older systems that do not have USB 2.0 support. It doesn't normally hurt to select them all if you are not certain. If your system has a device-side USB port, used in the peripheral side of the USB protocol, see the "USB Gadget" framework instead. After choosing your HCD, then select drivers for the USB peripherals you'll be using. You may want to check out the information provided in <file:Documentation/usb/> and especially the links given in <file:Documentation/usb/usb-help.rst>. To compile this driver as a module, choose M here: the module will be called usbcore. config USB_PCI bool "PCI based USB host interface" depends on PCI default y help 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. if USB source "drivers/usb/core/Kconfig" source "drivers/usb/mon/Kconfig" source "drivers/usb/host/Kconfig" source "drivers/usb/renesas_usbhs/Kconfig" source "drivers/usb/class/Kconfig" source "drivers/usb/storage/Kconfig" source "drivers/usb/image/Kconfig" source "drivers/usb/usbip/Kconfig" endif comment "USB dual-mode controller drivers" source "drivers/usb/cdns3/Kconfig" source "drivers/usb/fotg210/Kconfig" source "drivers/usb/mtu3/Kconfig" source "drivers/usb/musb/Kconfig" source "drivers/usb/dwc3/Kconfig" source "drivers/usb/dwc2/Kconfig" source "drivers/usb/chipidea/Kconfig" source "drivers/usb/isp1760/Kconfig" comment "USB port drivers" if USB source "drivers/usb/serial/Kconfig" source "drivers/usb/misc/Kconfig" source "drivers/usb/atm/Kconfig" endif # USB source "drivers/usb/phy/Kconfig" source "drivers/usb/gadget/Kconfig" source "drivers/usb/typec/Kconfig" source "drivers/usb/roles/Kconfig" endif # USB_SUPPORT