GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  ATRTC (4)

NAME

atrtc - AT Real-Time Clock (RTC) driver

CONTENTS

Synopsis
Description
See Also

SYNOPSIS

This driver is a mandatory part of i386/amd64 kernels.

The following tunable is settable from the loader(8):
hint.atrtc. X .clock controls event timers functionality support. Setting to 0, disables it. Default value is 1.

DESCRIPTION

This driver uses RTC hardware to supply kernel with time-of-day clock with 1 second resolution and one event timer. This hardware uses base frequency of 32768Hz for advancing time-of-day clock and generating periodic interrupts. Interrupts could be generated with fixed number of frequencies, from 2Hz to 8192Hz, obtained by dividing base frequency by one of supported power-of-2 divisors.

Event timer provided by the driver is irrelevant to CPU power states.

SEE ALSO

apic(4), attimer(4), eventtimers(4), hpet(4)
Search for    or go to Top of page |  Section 4 |  Main Index


Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.