Go to main content

Oracle® Solaris Modular Debugger Guide

Exit Print View

Updated: October 2019
 
 

USB Framework Debugging Support (uhci)

The uchi module provides debugging support for the host controller interface portion of the Universal Serial Bus (USB) framework.

USB Host Controller Dcmds

address ::uhci_qh [–bd]

Given the address of a USB UHCI controller Queue Head (QH) structure, print the contents of the structure. If the –b option is present iterate over the link_ptr chain, printing all QHs found. If the –d option is present, iterate over the element_ptr chain, printing all TDs found.

address ::uhci_td [–d]

Given the address of a USB UHCI controller Transaction Descriptor (TD) structure, print the contents of the structure. Note this only works for Control and Interrupt TDs. If the –d option is present, iterate over the element_ptr chain, printing all TDs found.

USB Host Controller Walkers

uhci_qh

Given the address of a USB UHCI controller Queue Head (QH) structure, iterate over the list of such structures.

uhci_td

Given the address of a USB UHCI controller Queue Head Descriptor (TD) structure, iterate over the list of such structures.