2 # USB Host Controller Drivers
4 comment "USB Host Controller Drivers"
8 tristate "EHCI HCD (USB 2.0) support"
11 The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
12 "high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
13 If your USB host controller supports USB 2.0, you will likely want to
14 configure this Host Controller Driver. At this writing, the primary
15 implementation of EHCI is a chip from NEC, widely available in add-on
16 PCI cards, but implementations are in the works from other vendors
17 including Intel and Philips. Motherboard support is appearing.
19 EHCI controllers are packaged with "companion" host controllers (OHCI
20 or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
21 will connect to EHCI if it the device is high speed, otherwise they
22 connect to a companion controller. If you configure EHCI, you should
23 probably configure the OHCI (for NEC and some other vendors) USB Host
24 Controller Driver or UHCI (for Via motherboards) Host Controller
27 You may want to read <file:Documentation/usb/ehci.txt>.
29 To compile this driver as a module, choose M here: the
30 module will be called ehci-hcd.
32 config USB_EHCI_SPLIT_ISO
33 bool "Full speed ISO transactions (EXPERIMENTAL)"
34 depends on USB_EHCI_HCD && EXPERIMENTAL
37 This code is new and hasn't been used with many different
38 EHCI or USB 2.0 transaction translator implementations.
39 It should work for ISO-OUT transfers, like audio.
41 config USB_EHCI_ROOT_HUB_TT
42 bool "Root Hub Transaction Translators (EXPERIMENTAL)"
43 depends on USB_EHCI_HCD && EXPERIMENTAL
45 Some EHCI chips have vendor-specific extensions to integrate
46 transaction translators, so that no OHCI or UHCI companion
47 controller is needed. It's safe to say "y" even if your
48 controller doesn't support this feature.
50 This supports the EHCI implementation from ARC International.
53 tristate "OHCI HCD support"
56 The Open Host Controller Interface (OHCI) is a standard for accessing
57 USB 1.1 host controller hardware. It does more in hardware than Intel's
58 UHCI specification. If your USB host controller follows the OHCI spec,
59 say Y. On most non-x86 systems, and on x86 hardware that's not using a
60 USB controller from Intel or VIA, this is appropriate. If your host
61 controller doesn't use PCI, this is probably appropriate. For a PCI
62 based system where you're not sure, the "lspci -v" entry will list the
63 right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
65 To compile this driver as a module, choose M here: the
66 module will be called ohci-hcd.
69 tristate "UHCI HCD (most Intel and VIA) support"
72 The Universal Host Controller Interface is a standard by Intel for
73 accessing the USB hardware in the PC (which is also called the USB
74 host controller). If your USB host controller conforms to this
75 standard, you may want to say Y, but see below. All recent boards
76 with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
77 i810, i820) conform to this standard. Also all VIA PCI chipsets
78 (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
79 133). If unsure, say Y.
81 To compile this driver as a module, choose M here: the
82 module will be called uhci-hcd.
85 tristate "SL811HS support"
88 Say Y here if you have a SL811HS USB host controller in your system.
90 If you do not know what this is, please say N.
92 To compile this driver as a module, choose M here: the
93 module will be called hc_sl811.