| attimer.4 (228501) | attimer.4 (228735) |
|---|---|
| 1.\" Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 8 unchanged lines hidden (view full) --- 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" | 1.\" Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 8 unchanged lines hidden (view full) --- 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" |
| 25.\" $FreeBSD: head/share/man/man4/attimer.4 228501 2011-12-14 15:19:40Z mav $ | 25.\" $FreeBSD: head/share/man/man4/attimer.4 228735 2011-12-20 13:49:52Z mav $ |
| 26.\" 27.Dd September 14, 2010 28.Dt ATTIMER 4 29.Os 30.Sh NAME 31.Nm attimer 32.Nd i8254 Programmable Interval Timer (AT Timer) driver 33.Sh SYNOPSIS --- 31 unchanged lines hidden (view full) --- 65Driver uses single hardware channel to provide both time counter and event 66timer functionality. 67To make it possible, respective counter must be running in periodic more. 68As result, one-shot event timer mode supported only when time counter 69functionality is disabled. 70.Pp 71Event timer provided by the driver is irrelevant to CPU power states. 72.Sh SEE ALSO | 26.\" 27.Dd September 14, 2010 28.Dt ATTIMER 4 29.Os 30.Sh NAME 31.Nm attimer 32.Nd i8254 Programmable Interval Timer (AT Timer) driver 33.Sh SYNOPSIS --- 31 unchanged lines hidden (view full) --- 65Driver uses single hardware channel to provide both time counter and event 66timer functionality. 67To make it possible, respective counter must be running in periodic more. 68As result, one-shot event timer mode supported only when time counter 69functionality is disabled. 70.Pp 71Event timer provided by the driver is irrelevant to CPU power states. 72.Sh SEE ALSO |
| 73.Xr apic 4 , |
|
| 73.Xr atrtc 4 , | 74.Xr atrtc 4 , |
| 74.Xr hpet 4 , 75.Xr eventtimers 4 | 75.Xr eventtimers 4 , 76.Xr hpet 4 |