USB_IA(4D) Devices USB_IA(4D)

usb_ia - USB interface association driver

interface association@unit-address

The usb_ia driver is a USBA (Solaris Universal Serial Bus Architecture)-compliant nexus driver that binds to a device's interface association nodes when no vendor or class specific driver is available. To do this, usb_ia creates nodes for the internal interfaces and then attempts to bind drivers to each child interface.

Each interface association node has a parent device node that is created by usb_mid(4D) and all ugen(4D) interfaces are exported by usb_mid(4D). (Note: attempting to export ugen(4D) interfaces using usb_ia is prohibited.)


32-bit ELF kernel module. (x86).


64-bit ELF kernel module. (x86).


64-bit ELF kernel module. (SPARC).

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

Architecture SPARC & x86 PCI-based systems

ugen(4D), usb_mid(4D), usba(4D), attributes(7)

Writing Device Drivers

System Administration Guide: Basic Administration

Universal Serial Bus Specification 2.0 — 2000

Interface Association Descriptor Engineering Change Notice (ECN)—2003

In addition to being logged, the following messages may appear on the system console. All messages are formatted in the following manner:

<device path> (usb_ia<instance num>):message...

No driver found for interface <n> (nodename: <string>) of <device>.

No driver is available for this interface.

May 13, 2017 OmniOS