Technical data

Due to recently discovered incompatibilities with this
USB controller, USB2.x transfer support has been disabled.
This device will continue to function as a USB1.x controller.
If you are interested in enabling USB2.x support please refer
to the ehci(7D) man page.
Please refer to www.sun.com/io for Solaris Ready products
and to www.sun.com/bigadmin/hcl for additional compatible
USB products.
For the latest information about USB devices, see http://www.sun.com/io_technologies/
USB-Faq.html
.
Supported USB Devices and Corresponding Hub
Congurations
This Solaris release supports both USB 1.1 and USB 2.0 devices. The following table is a
summary of USB devices that work in specic congurations. Connection types can either be
direct to the computer or through a USB hub. Note that USB 1.1 devices and hubs are low speed
or full speed. USB 2.0 devices and hubs are high speed. For details about ports and speeds of
operation, see the
System Administration Guide: Devices and File Systems.
TABLE 2–1 USB Devices and Congurations
USB Devices Connection Types
USB 2.0 storage devices Direct, USB 1.1 hub, USB 2.0 hub
USB 1.1 devices except audio Direct, USB 1.1 hub, USB 2.0 hub
USB 1.1 audio devices Direct, USB 1.1 hub
USB 2.0 audio devices Not supported
x86: Limitations Exist With Certain Device Drivers in
Solaris 10 OS
The following list describes limitations with certain drivers and interfaces in this release of
Solaris 10 for x86 platforms:
Checkpoint Resume This functionality is turned o for all device types. In the DDI_SUSPEND
code in your detach() function, you should return DDI_FAILURE.
Power Management This functionality is unavailable to USB devices. Do not create power
management components. Write your driver so that
pm_raise_power() and pm_lower_power() are called only when
power management components are created.
Hardware–Related Issues and Bugs
Solaris 10 5/08 Release Notes • April 200866