The ehci driver is a USBA (Solaris USB Architecture) compliant nexus driver that supports the Enhanced Host Controller Interface Specification 1.0, an industry standard developed by Intel.
The ehci driver supports control, bulk and interrupt transfers. It enables support for USB 2.0 devices in the USBA 1.0 framework
32-bit ELF kernel module for the USBA 1.0 framework*
64-bit ELF kernel module for the USBA 1.0 framework*
* Please see www.sun.com/desktop/whitepapers.html for more information regarding USB dual framework implementation, USBA 1.0, and USB 2.0.
See attributes(5) for descriptions of the following attributes:
|ATTRIBUTE TYPE||ATTRIBUTE VALUE|
|Architecture||PCI-based SPARC systems|
Writing Device Drivers
Universal Serial Bus Specification 2.0
Enhanced Host Controller Interface Specification 1.0
System Administration Guide: Basic Administration
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> (usba10_ehci<instance number>): Error message...
High speed isochronous transfers are not supported.
There was an unrecoverable USB hardware error reported by the ehci controller. Reboot the system. If this problem persists, contact your system vendor.
The USB hardware is not generating Start Of Frame interrupts. Reboot the system. If this problem persists, contact your system vendor.