HP (Hewlett-Packard) 653745-001 Server User Manual


 
Diagnostic tools 72
USB support
HP provides both standard USB 2.0 support and legacy USB 2.0 support. Standard support is provided
by the OS through the appropriate USB device drivers. Before the OS loads, HP provides support for USB
devices through legacy USB support, which is enabled by default in the system ROM.
Legacy USB support provides USB functionality in environments where USB support is not available
normally. Specifically, HP provides legacy USB functionality for the following:
POST
RBSU
Diagnostics
DOS
Operating environments which do not provide native USB support