drivers/usb/Kconfig

   1 config USB_ARCH_HAS_HCD
   2         def_bool y
   3
   4 config USB
   5         bool "Support for Host-side USB"
   6         depends on USB_ARCH_HAS_HCD
   7         ---help---
   8           Universal Serial Bus (USB) is a specification for a serial bus
   9           subsystem which offers higher speeds and more features than the
  10           traditional PC serial port.  The bus supplies power to peripherals
  11           and allows for hot swapping.  Up to 127 USB peripherals can be
  12           connected to a single USB host in a tree structure.
  13
  14           The USB host is the root of the tree, the peripherals are the
  15           leaves and the inner nodes are special USB devices called hubs.
  16           Most PCs now have USB host ports, used to connect peripherals
  17           such as scanners, keyboards, mice, modems, cameras, disks,
  18           flash memory, network links, and printers to the PC.
  19
  20           Say Y here if your computer has a host-side USB port and you want
  21           to use USB devices.  You then need to say Y to at least one of the
  22           Host Controller Driver (HCD) options below.  Choose a USB 1.1
  23           controller, such as "UHCI HCD support" or "OHCI HCD support",
  24           and "EHCI HCD (USB 2.0) support" except for older systems that
  25           do not have USB 2.0 support.  It doesn't normally hurt to select
  26           them all if you are not certain.
  27
  28           If your system has a device-side USB port, used in the peripheral
  29           side of the USB protocol, see the "USB Gadget" framework instead.
  30
  31           After choosing your HCD, then select drivers for the USB peripherals
  32           you'll be using.  You may want to check out the information provided
  33           in <file:Documentation/usb/> and especially the links given in
  34           <file:Documentation/usb/usb-help.txt>.
  35
  36 if USB
  37
  38 config DM_USB
  39         bool "Enable driver model for USB"
  40         depends on USB && DM
  41         help
  42           Enable driver model for USB. The USB interface is then implemented
  43           by the USB uclass. Multiple USB controllers of different types
  44           (XHCI, EHCI) can be attached and used. The 'usb' command works as
  45           normal. OCHI is not supported at present.
  46
  47           Much of the code is shared but with this option enabled the USB
  48           uclass takes care of device enumeration. USB devices can be
  49           declared with the USB_DEVICE() macro and will be automatically
  50           probed when found on the bus.
  51
  52 source "drivers/usb/host/Kconfig"
  53
  54 source "drivers/usb/emul/Kconfig"
  55
  56 config USB_STORAGE
  57         bool "USB Mass Storage support"
  58         ---help---
  59           Say Y here if you want to connect USB mass storage devices to your
  60           board's USB port.
  61
  62 endif