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man pages section 4: Device and Network Interfaces

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Updated: Thursday, June 13, 2019
 
 

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/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
Availability
system/io/usb

See Also

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

Writing Device Drivers in Oracle Solaris 11.4

Universal Host Controller Interface Specification for USB 1.1

Universal Serial Bus Specification 2.0

(http://www.oracle.com)

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.