UHCI(4D) Devices UHCI(4D)

NAME

uhci - host controller driver

SYNOPSIS

pcivid,pid@unit-address

DESCRIPTION

The uhci host controller driver is a USBA (Solaris USB Architecture)
compliant nexus driver that supports the Universal Host Controller
Interface Specification 1.1, an industry standard developed by Intel.
The uhci driver supports all USB transfers, including interrupt,
control, isochronous and bulk.

FILES

/kernel/drv/uhci
32-bit ELF kernel module. (SPARC or x86).


/kernel/drv/amd64/uhci
64-bit ELF kernel module. (x86).


/kernel/drv/sparcv9/uhci
64-bit SPARC ELF kernel module.


/kernel/drv/uhci.conf
Driver configuration file.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+---------------+----------------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+----------------------------------+
|Architecture | SPARC or x86 PCI-based systems |
+---------------+----------------------------------+

SEE ALSO

ehci(4D), hubd(4D), ohci(4D), usba(4D), attributes(7)


Writing Device Drivers


Universal Host Controller Interface Specification for USB 1.1


Universal Serial Bus Specification 2.0


System Administration Guide: Basic Administration

DIAGNOSTICS

All host controller errors are passed to the client drivers. Root
errors are documented in hubd(4D).


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> <uhci><instance number>>: Error message...


No SOF interrupts have been received. This USB UHCI host 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.


May 13, 2017 UHCI(4D)