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Devicesohci(7D)


NAME

 ohci - OpenHCI host controller driver

SYNOPSIS

 
usb@unit-address

DESCRIPTION

 

The ohci driver is a USBA (Solaris USB Architecture) compliant 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 isochronous transfers.

FILES

 
/kernel/drv/ohci
32 bit ELF kernel module
/kernel/drv/sparcv9/ohci
64 bit ELF kernel module
/kernel/drv/ohci.conf
driver configuration file

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
ArchitecturePCI-based SPARC
Availability SUNWusb, SUNWusbx

SEE ALSO

 

attributes(5), hubd(7D), usba(7D)

Writing Device Drivers

Universal Serial Bus Specification 1.0 and 1.1

Open Host Controller Interface Specification for USB 1.0a

System Administration Guide: Basic Administration

http://www.sun.com/io

DIAGNOSTICS

 

All host controller errors are passed to the client drivers. Root 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...
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 problem persists, contact your system vendor.

SunOS 5.9Go To TopLast Changed 18 Dec 2001

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.