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:
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
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.