NAME

       longrun — Transmeta(TM) Crusoe(TM) LongRun(TM) support

SYNOPSIS

       LongRun support is a collection of power saving modes for the Transmeta Crusoe chips, similar in scope to
       Intel's SpeedStep.  The following sysctl(8) MIBs control the different CPU modes:

       Name                    Type       Changeable    Description
       hw.crusoe.longrun       integer    yes           LongRun mode:
                                                        0: minimum frequency mode
                                                        1: power-saving mode
                                                        2: performance mode
                                                        3: maximum frequency mode
       hw.crusoe.frequency     integer    no            Current frequency (MHz).
       hw.crusoe.voltage       integer    no            Current voltage (mV).
       hw.crusoe.percentage    integer    no            Processing performance (%).

EXAMPLES

       Print the current status:

             % sysctl hw.crusoe

       To set LongRun mode to performance oriented variable frequency mode (less power savings):

             # sysctl hw.crusoe.longrun=2

HISTORY

       The Transmeta(TM) Crusoe(TM) LongRun(TM) support first appeared in FreeBSD 4.4.

AUTHORS

       LongRun  support and this manual page were written by Tamotsu HATTORI <athlete@kta.att.ne.jp> and Mitsuru
       IWASAKI <iwasaki@FreeBSD.org>.

Debian                                            June 30, 2001                                       LONGRUN(4)