# # USB Host Controller Drivers # comment "USB Host Controller Drivers" depends on USB config USB_EHCI_HCD tristate "EHCI HCD (USB 2.0) support" depends on USB ---help--- 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 . To compile this driver as a module, choose M here: the module will be called ehci-hcd. config USB_EHCI_SPLIT_ISO bool "Full speed ISO transactions (EXPERIMENTAL)" depends on USB_EHCI_HCD && EXPERIMENTAL default n ---help--- This code is new and hasn't been used with many different EHCI or USB 2.0 transaction translator implementations. It should work for ISO-OUT transfers, like audio. config USB_EHCI_ROOT_HUB_TT bool "Root Hub Transaction Translators (EXPERIMENTAL)" depends on USB_EHCI_HCD && EXPERIMENTAL ---help--- Some EHCI chips have vendor-specific extensions to integrate transaction translators, so that no OHCI or UHCI companion controller is needed. It's safe to say "y" even if your controller doesn't support this feature. This supports the EHCI implementation from ARC International. config USB_OHCI_HCD tristate "OHCI HCD support" depends on USB select ISP1301_OMAP if MACH_OMAP_H2 ---help--- 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. To compile this driver as a module, choose M here: the module will be called ohci-hcd. config USB_UHCI_HCD tristate "UHCI HCD (most Intel and VIA) support" depends on USB ---help--- 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. To compile this driver as a module, choose M here: the module will be called uhci-hcd. config USB_SL811HS tristate "SL811HS support" depends on ARM && USB help 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. To compile this driver as a module, choose M here: the module will be called hc_sl811.