1# 2# USB Host Controller Drivers 3# 4comment "USB Host Controller Drivers" 5 depends on USB 6 7config USB_EHCI_HCD 8 tristate "EHCI HCD (USB 2.0) support" 9 depends on USB && USB_ARCH_HAS_EHCI 10 ---help--- 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 the time of this writing, 15 the primary implementation of EHCI is a chip from NEC, widely available 16 in add-on PCI cards, but implementations are in the works from other 17 vendors including Intel and Philips. Motherboard support is appearing. 18 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 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 25 Driver too. 26 27 You may want to read <file:Documentation/usb/ehci.txt>. 28 29 To compile this driver as a module, choose M here: the 30 module will be called ehci-hcd. 31 32config USB_EHCI_SPLIT_ISO 33 bool "Full speed ISO transactions (EXPERIMENTAL)" 34 depends on USB_EHCI_HCD && EXPERIMENTAL 35 default n 36 ---help--- 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. 40 41config USB_EHCI_ROOT_HUB_TT 42 bool "Root Hub Transaction Translators (EXPERIMENTAL)" 43 depends on USB_EHCI_HCD && EXPERIMENTAL 44 ---help--- 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. 49 50 This supports the EHCI implementation that's originally 51 from ARC, and has since changed hands a few times. 52 53config USB_EHCI_TT_NEWSCHED 54 bool "Improved Transaction Translator scheduling (EXPERIMENTAL)" 55 depends on USB_EHCI_HCD && EXPERIMENTAL 56 ---help--- 57 This changes the periodic scheduling code to fill more of the low 58 and full speed bandwidth available from the Transaction Translator 59 (TT) in USB 2.0 hubs. Without this, only one transfer will be 60 issued in each microframe, significantly reducing the number of 61 periodic low/fullspeed transfers possible. 62 63 If you have multiple periodic low/fullspeed devices connected to a 64 highspeed USB hub which is connected to a highspeed USB Host 65 Controller, and some of those devices will not work correctly 66 (possibly due to "ENOSPC" or "-28" errors), say Y. 67 68 If unsure, say N. 69 70config USB_ISP116X_HCD 71 tristate "ISP116X HCD support" 72 depends on USB 73 ---help--- 74 The ISP1160 and ISP1161 chips are USB host controllers. Enable this 75 option if your board has this chip. If unsure, say N. 76 77 This driver does not support isochronous transfers. 78 79 To compile this driver as a module, choose M here: the 80 module will be called isp116x-hcd. 81 82config USB_OHCI_HCD 83 tristate "OHCI HCD support" 84 depends on USB && USB_ARCH_HAS_OHCI 85 select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 86 ---help--- 87 The Open Host Controller Interface (OHCI) is a standard for accessing 88 USB 1.1 host controller hardware. It does more in hardware than Intel's 89 UHCI specification. If your USB host controller follows the OHCI spec, 90 say Y. On most non-x86 systems, and on x86 hardware that's not using a 91 USB controller from Intel or VIA, this is appropriate. If your host 92 controller doesn't use PCI, this is probably appropriate. For a PCI 93 based system where you're not sure, the "lspci -v" entry will list the 94 right "prog-if" for your USB controller(s): EHCI, OHCI, or UHCI. 95 96 To compile this driver as a module, choose M here: the 97 module will be called ohci-hcd. 98 99config USB_OHCI_HCD_PPC_SOC 100 bool "OHCI support for on-chip PPC USB controller" 101 depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx) 102 default y 103 select USB_OHCI_BIG_ENDIAN 104 ---help--- 105 Enables support for the USB controller on the MPC52xx or 106 STB03xxx processor chip. If unsure, say Y. 107 108config USB_OHCI_HCD_PCI 109 bool "OHCI support for PCI-bus USB controllers" 110 depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx) 111 default y 112 select USB_OHCI_LITTLE_ENDIAN 113 ---help--- 114 Enables support for PCI-bus plug-in USB controller cards. 115 If unsure, say Y. 116 117config USB_OHCI_BIG_ENDIAN 118 bool 119 depends on USB_OHCI_HCD 120 default n 121 122config USB_OHCI_LITTLE_ENDIAN 123 bool 124 depends on USB_OHCI_HCD 125 default n if STB03xxx || PPC_MPC52xx 126 default y 127 128config USB_UHCI_HCD 129 tristate "UHCI HCD (most Intel and VIA) support" 130 depends on USB && PCI 131 ---help--- 132 The Universal Host Controller Interface is a standard by Intel for 133 accessing the USB hardware in the PC (which is also called the USB 134 host controller). If your USB host controller conforms to this 135 standard, you may want to say Y, but see below. All recent boards 136 with Intel PCI chipsets (like intel 430TX, 440FX, 440LX, 440BX, 137 i810, i820) conform to this standard. Also all VIA PCI chipsets 138 (like VIA VP2, VP3, MVP3, Apollo Pro, Apollo Pro II or Apollo Pro 139 133). If unsure, say Y. 140 141 To compile this driver as a module, choose M here: the 142 module will be called uhci-hcd. 143 144config USB_SL811_HCD 145 tristate "SL811HS HCD support" 146 depends on USB 147 help 148 The SL811HS is a single-port USB controller that supports either 149 host side or peripheral side roles. Enable this option if your 150 board has this chip, and you want to use it as a host controller. 151 If unsure, say N. 152 153 To compile this driver as a module, choose M here: the 154 module will be called sl811-hcd. 155 156config USB_SL811_CS 157 tristate "CF/PCMCIA support for SL811HS HCD" 158 depends on USB_SL811_HCD && PCMCIA 159 help 160 Wraps a PCMCIA driver around the SL811HS HCD, supporting the RATOC 161 REX-CFU1U CF card (often used with PDAs). If unsure, say N. 162 163 To compile this driver as a module, choose M here: the 164 module will be called "sl811_cs". 165 166