diff options
Diffstat (limited to 'share/man/man4/man4.i386/apm.4')
-rw-r--r-- | share/man/man4/man4.i386/apm.4 | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/share/man/man4/man4.i386/apm.4 b/share/man/man4/man4.i386/apm.4 index a6a5685..ddce25e 100644 --- a/share/man/man4/man4.i386/apm.4 +++ b/share/man/man4/man4.i386/apm.4 @@ -20,33 +20,33 @@ .Sh SYNOPSIS .Cd device apm0 at nexus? .Sh DESCRIPTION -.Nm apm +.Nm is an interface to the Intel / Microsoft APM (Advanced Power Management) BIOS on laptop PCs. .Pp -.Nm apm +.Nm provides the following power management functions. .Bl -enum -offset indent .It When the system wakes up from suspended mode, -.Nm apm +.Nm adjusts the system clock to RTC. .It When the system wakes up from suspended mode, -.Nm apm +.Nm passes a message to .Xr syslogd 8 comprising of system wakeup time and elapsed time during suspended mode. .It -.Nm apm +.Nm slows CPU clock when there are no system activities (runnable processes, interrupts, etc.). This function is available only on systems whose APM supports CPU idling. .It -.Nm apm +.Nm exports an application interface as a character device. Applications can control APM, or retrieve APM status information via this interface. -.Nm apm +.Nm exports the following interfaces. These symbols are defined in .Dq Pa /usr/include/machine/apm_bios.h. .Bl -tag -width 4n -offset indent @@ -79,13 +79,13 @@ does not execute HLT in .Dq Pa Idle CPU. On some implementations that do not support CPU clock slowdown, APM might not execute HLT. -.Nm apm +.Nm disables .Sy APMIO_NOTHALTCPU operation on such machines. .Pp The current version of -.Nm apm +.Nm does not call .Dq Pa Idle CPU from the kernel context switch routine if clock slowdown is not supported, @@ -96,7 +96,7 @@ no need to use these two operations in most cases. These interfaces are used by .Xr apm 8 . .It -.Nm apm +.Nm polls APM events and handles the following events. .Bl -column PMEV_POWERSTATECHANGEXXX "suspend system xxxxx" .It Sy "Name " "Action " "Description" @@ -123,7 +123,7 @@ We are very interested in getting this code working, so please send you observations of any anomalous behavior to us. .Pp When -.Nm apm +.Nm is active, calling the BIOS setup routine by using hot-keys, may cause serious trouble when resuming the system. BIOS setup programs should be called during bootstrap, or from DOS. |