ohci(7D)

NAME

     ohci - OpenHCI host controller driver

SYNOPSIS

     usb@unit-address

DESCRIPTION

     The ohci driver is  a USBA (Solaris  USB Architecture)  com-
     pliant  nexus  driver that supports the Open Host Controller
     Interface Specification 1.0a, an industry standard developed
     by Compaq,  Microsoft, and National Semiconductor.

     The ohci driver supports bulk, interrupt, control  and  iso-
     chronous transfers.

FILES

     /kernel/drv/ohci
           32 bit ELF kernel module for original USBA framework.*

     /kernel/drv/sparcv9/ohci
           64 bit ELF kernel module for original USBA framework.*
           (SPARC only).

     /kernel/drv/ohci.conf
           ohci configuration file.

     /kernel/drv/usba10_ohci
           32 bit ELF kernel module for USBA 1.0 framework.*

     /kernel/drv/sparcv9/usba10_ohci
           64 bit ELF kernel  module  for  USBA  1.0  framework.*
           (SPARC only).

     /kernel/drv/usba10_ohci.conf
           usba10_ohci configuration file.

     * Please see www.sun.com/desktop/whitepapers.html  for  more
     information  regarding  USB  dual  framework implementation,
     USBA 1.0, and USB 2.0.

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
          ATTRIBUTE TYPE                ATTRIBUTE VALUE
     ____________________________________________________________
      Architecture             PCI-based systems
     ____________________________________________________________
      Availability             SUNWusb    (All    architectures)
                               SUNWusbx (SPARC only)
     ____________________________________________________________

    |                       |                                   |
    |                       |                                   |

SEE ALSO | |

    |attributes(5), ehci(7D), hubd(7D), usba(7D)                |
    |                       |                                   |
    |Writing Device Drivers |                                   |
    |                       |                                   |
    |Universal Serial Bus Sp_cification 2.0                     |
    |                       |                                   |
    |Open Host Controller In_erface Specification for USB 1.0a  |
    |                       |                                   |
    |System Administration G_ide: Basic Administration          |
    |                       |                                   |
    |http://www.sun.com/desk_op/whitepapers.html                |
    |                       |                                   |
    |http://www.sun.com/io  |                                   |
    |                       |                                   |

DIAGNOSTICS | |

    |All host controller errors are passed to the client drivers.
    |Root hub errors are documented in hubd(7D).                |
    |                       |                                   |
    |In addition to being logged,  the   following  messages  may
    |appear  on the system console. All messages are formatted in
    |the following manner:  |                                   |
    |                       |                                   |
    |WARNING: <device path> (ohci<instance number>): Error message...
    |                       |                                   |
    |or                     |                                   |
    |                       |                                   |
    |WARNING: <device path> (usba10_ohci<instance number>):     |
    |Error message...       |                                   |
    |                       |                                   |
    |Unrecoverable USB Hardware Error.                          |
    |      There was an unrecoverable USB hardware error reported
    |      by  the OHCI Controller. Please reboot the system.  If
    |      this  problem  persists,  contact your  system vendor.
    |                       |                                   |
    |No SOF interrupts.     |                                   |
    |      The USB hardware is  not  generating  Start  Of  Frame
    |      interrupts.  Please reboot the system.  If this  prob-
    |      lem persists,  contact your system vendor.           |
    |                       |                                   |
    |                       |                                   |
    |                       |                                   |