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CONFIG_USB_EHCI_HCD
The Enhanced Host Controller Interface (EHCI) is standard for USB 2.0
"high speed" (480 Mbit/sec, 60 Mbyte/sec) host controller hardware.
If your USB host controller supports USB 2.0, you will likely want to
configure this Host Controller Driver. At this writing, the primary
implementation of EHCI is a chip from NEC, widely available in add-on
PCI cards, but implementations are in the works from other vendors
including Intel and Philips. Motherboard support is appearing.
EHCI controllers are packaged with "companion" host controllers (OHCI
or UHCI) to handle USB 1.1 devices connected to root hub ports. Ports
will connect to EHCI if it the device is high speed, otherwise they
connect to a companion controller. If you configure EHCI, you should
probably configure the OHCI (for NEC and some other vendors) USB Host
Controller Driver or UHCI (for Via motherboards) Host Controller
Driver too.
You may want to read <file:Documentation/usb/ehci.txt>.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ehci-hcd.o. If you want to compile it as a
module, say M here and read <file:Documentation/modules.txt>.
CONFIG_USB_OHCI_HCD
The Open Host Controller Interface (OHCI) is a standard for accessing
USB 1.1 host controller hardware. It does more in hardware than Intel's
UHCI specification. If your USB host controller follows the OHCI spec,
say Y. On most non-x86 systems, and on x86 hardware that's not using a
USB controller from Intel or VIA, this is appropriate. If your host
controller doesn't use PCI, this is probably appropriate. For a PCI
based system where you're not sure, the "lspci -v" entry will list the
right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called ohci-hcd.o. If you want to compile it
as a module, say M here and read <file:Documentation/modules.txt>.
CONFIG_USB_UHCI_HCD_ALT
The Universal Host Controller Interface is a standard by Intel for
accessing the USB hardware in the PC (which is also called the USB
host controller). If your USB host controller conforms to this
standard, you may want to say Y, but see below. All recent boards
with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX,
i810, i820) conform to this standard. Also all VIA PCI chipsets
(like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro
133). If unsure, say Y.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called uhci-hcd.o. If you want to compile it as a
module, say M here and read <file:Documentation/modules.txt>.
CONFIG_USB_SL811HS
Say Y here if you have a SL811HS USB host controller in your system.
If you do not know what this is, please say N.
This code is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called hc_sl811.o. If you want to compile it
as a module, say M here and read <file:Documentation/modules.txt>.
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