OHCI(4) BSD Kernel Interfaces Manual OHCI(4)NAME
ohci -- OHCI USB Host Controller driver
SYNOPSIS
device ohci
DESCRIPTION
The ohci driver provides support for OHCI-type PCI based USB controllers.
HARDWARE
The ohci driver supports all OHCI v1.0 compliant controllers including:
o AcerLabs M5237 (Aladdin-V)
o AMD-756
o OPTi 82C861 (FireLink)
o NEC uPD 9210
o CMD Tech 670 (USB0670)
o CMD Tech 673 (USB0673)
o NVIDIA nForce3
o Sun PCIO-2 (RIO USB)
SEE ALSO ehci(4), uhci(4)HISTORY
The ohci device driver first appeared in FreeBSD 3.0.
AUTHORS
The ohci driver was written by Lennart Augustsson <augustss@carlstedt.se> for the NetBSD project.
BSD June 23, 2005 BSD
Check Out this Related Man Page
ohci(7D) Devices ohci(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
1.1, 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 x86 ELF kernel module
/kernel/drv/amd64/ohci 64-bit x86 ELF kernel module
/kernel/drv/sparcv9/ohci 64-bit SPARC ELF kernel module
/kernel/drv/ohci.conf driver configuration file
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-------------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-------------------------------+
|Architecture |SPARC, x86, PCI-based systems |
+-----------------------------+-------------------------------+
|Availability |SUNWusb |
+-----------------------------+-------------------------------+
SEE ALSO attributes(5), ehci(7D), hubd(7D), uhci(7D), usba(7D)
Writing Device Drivers
Universal Serial Bus Specification 2.0
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 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...
Unrecoverable USB Hardware Error.
There was an unrecoverable USB hardware error reported by the OHCI Controller. Please reboot the system. If this problem persists, con-
tact your system vendor.
No SOF interrupts have been received. This OHCI USB controller is unusable.
The USB hardware is not generating Start Of Frame interrupts. Please reboot the system. If this problem persists, contact your system
vendor.
The following messages may be entered into the system log. They are formatted in the following manner:
<device path> <ohci<instance number>): Message...
Failed to program frame interval register.
For an unspecified reason, the frame interval register has been nulled out by the Uli M1575 chip. Please reboot the system. If this
problem persists, contact your system vendor.
SunOS 5.11 23 Nov 2006 ohci(7D)
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