Devices                                                  uhci(7D)



NAME
     uhci - host controller driver

SYNOPSIS
     pcivid,pid@unit-address


DESCRIPTION
     The uhci host controller driver  is  a  USBA   (Solaris  USB
     Architecture)  compliant  nexus  driver  that  supports  the
     Universal Host Controller Interface  Specification  1.1,  an
     industry  standard  developed by Intel. The uhci driver sup-
     ports all USB transfers, including interrupt, control,  iso-
     chronous and bulk.

FILES
     /kernel/drv/uhci            32-bit ELF kernel module. (SPARC
                                 or x86).


     /kernel/drv/amd64/uhci      64-bit ELF kernel module. (x86).


     /kernel/drv/sparcv9/uhci    64-bit SPARC ELF kernel module.


     /kernel/drv/uhci.conf       Driver configuration file.


ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     
     ATRIBUTE TYPE               ATRIBUTE VALUE                 
    
     Architecture                 SPARC or  x86  PCI-based systems
    
     Availability                 SUNWusb                         
    


SEE ALSO
     attributes(5), ehci(7D), hubd(7D), ohci(7D), usba(7D)


     Writing Device Drivers






SunOS 5.11          Last change: 26 July 2005                   1






Devices                                                  uhci(7D)



     Universal Host Controller Interface  Specification  for  USB
     1.1


     Universal Serial Bus Specification 2.0


     System Administration Guide: Basic Administration


     http:/www.sun.com/io

DIAGNOSTICS
     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:  >: Error message...



     No SOF interrupts have been received. This USB UHCI host
     controller is unusable.

         The USB hardware is not generating Start Of Frame inter-
         rupts.  Please  reboot  the system. If this problem per-
         sists, contact your system vendor.
























SunOS 5.11          Last change: 26 July 2005                   2