ACPICPU(4) - Device Drivers Manual # ACPICPU(4) - Device Drivers Manual NAME # acpicpu - ACPI processor power and performance state SYNOPSIS # acpicpu* at acpi? DESCRIPTION # The acpicpu driver provides support for extracting processor power and performance levels from ACPI tables. This information is used to enter deeper CPU power states when idle, and can be used to throttle processor speed to reduce power usage and extend battery life through the hw. ...
APLCPU(4) - Device Drivers Manual (arm64) # APLCPU(4) - Device Drivers Manual (arm64) NAME # aplcpu - Apple CPU power states SYNOPSIS # aplcpu* at fdt? DESCRIPTION # The aplcpu driver provides support for managing the CPU power states on Apple SoCs. These power states can be set to reduce power usage and extend battery life through the hw.setperf sysctl(2) mechanism. SEE ALSO # sysctl(2), intro(4), apmd(8), sysctl(8) HISTORY # The aplcpu driver first appeared in OpenBSD 7. ...
APM(4) - Device Drivers Manual (i386) # APM(4) - Device Drivers Manual (i386) NAME # apm - advanced power management device interface SYNOPSIS # apm0 at bios0 flags 0x0000 DESCRIPTION # The apm driver provides an interface to the Advanced Power Management (APM) BIOS functions. The driver supports versions 1.0, 1.1, and 1.2 interface specifications. This driver also provides an interface to acpi(4) on some machines. The low two bytes of the flags specify the version of the specification driver should conform to in binary decimal notation. ...
APM(4) - Device Drivers Manual (loongson) # APM(4) - Device Drivers Manual (loongson) NAME # apm - advanced power management device interface SYNOPSIS # apm0 at mainbus0 DESCRIPTION # The apm driver provides generic power and battery control, relying on device specific drivers to provide the actual information. The apm driver provides an interface which simulates the Advanced Power Management (APM) BIOS functions encountered on some x86 hardware. The BIOS functions are translated into the appropriate microcontroller requests by the hardware specific drivers, like ykbec(4). ...
APM(4) - Device Drivers Manual (macppc) # APM(4) - Device Drivers Manual (macppc) NAME # apm - advanced power management device interface SYNOPSIS # apm0 at adb? DESCRIPTION # The apm driver provides an interface which simulates the Advanced Power Management (APM) BIOS functions. The BIOS functions are translated into the appropriate PowerManager requests. Currently only battery level, AC connection, and charging status is available from the apm device. ...
APM(8) - System Manager’s Manual # APM(8) - System Manager’s Manual NAME # apm, zzz, ZZZ - Advanced Power Management control program SYNOPSIS # apm [-AabHLlmPSvZz] [-f sockname] zzz [-SZz] [-f sockname] ZZZ [-SZz] [-f sockname] DESCRIPTION # apm communicates with the Advanced Power Management daemon, apmd(8), making requests of it for current power status or to place the system into a suspend or stand-by state. With no flags, apm displays the current power management state in verbose form. ...
APMD(8) - System Manager’s Manual # APMD(8) - System Manager’s Manual NAME # apmd - Advanced Power Management daemon SYNOPSIS # apmd [-AadHLs] [-f devname] [-S sockname] [-t seconds] [-Z percent] [-z percent] DESCRIPTION # apmd monitors the advanced power management device, apm(4), acting on signaled events and upon user requests as sent by the apm(8) program. For suspend and standby request events delivered by the BIOS, or via apm(8), apmd runs the appropriate configuration program (if one exists), syncs the buffer cache to disk and initiates the requested state. ...
QCCPU(4) - Device Drivers Manual # QCCPU(4) - Device Drivers Manual NAME # qccpu - Qualcomm Snapdragon CPU power states SYNOPSIS # qccpu* at fdt? DESCRIPTION # The qccpu driver provides support for managing the CPU power states on Qualcomm Snapdragon SoCs. These power states can be set to reduce power usage and extend battery life through the hw.setperf sysctl(2) mechanism. SEE ALSO # sysctl(2), intro(4), apmd(8), sysctl(8) HISTORY # The qccpu driver first appeared in OpenBSD 7. ...