blob: 637ef3d567e88c348d8c362d6a145cf1d074c733 [file] [log] [blame]
Masahiro Yamada6e7e9292014-11-07 18:48:31 +09001config USB_ARCH_HAS_HCD
2 def_bool y
3
4config 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
36if USB
37
Simon Glassde312132015-03-25 12:21:59 -060038config 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
Masahiro Yamada6e7e9292014-11-07 18:48:31 +090052source "drivers/usb/host/Kconfig"
53
Simon Glass019808f2015-03-25 12:22:37 -060054source "drivers/usb/emul/Kconfig"
55
Masahiro Yamada6e7e9292014-11-07 18:48:31 +090056config 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
62endif