diff options
| author | Aaron Campbell <aaron@cvs.openbsd.org> | 2000-12-21 21:01:23 +0000 |
|---|---|---|
| committer | Aaron Campbell <aaron@cvs.openbsd.org> | 2000-12-21 21:01:23 +0000 |
| commit | b9b6b965e68e89b6ca50f9f928ba04db6ca84ee5 (patch) | |
| tree | fa0ee123c9ba049432e15eeefe3ee5e8bd8d1888 /share/man/man4/pciide.4 | |
| parent | 405beaa86a3f811a5fcf9947931254979f585d31 (diff) | |
Various repairs, $Id$ tags added, etc.
Diffstat (limited to 'share/man/man4/pciide.4')
| -rw-r--r-- | share/man/man4/pciide.4 | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/share/man/man4/pciide.4 b/share/man/man4/pciide.4 index 0d56696eef2..9b8e226c7ef 100644 --- a/share/man/man4/pciide.4 +++ b/share/man/man4/pciide.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: pciide.4,v 1.10 2000/11/07 22:38:59 chris Exp $ +.\" $OpenBSD: pciide.4,v 1.11 2000/12/21 21:01:18 aaron Exp $ .\" $NetBSD: pciide.4,v 1.8 1999/03/16 01:19:17 garbled Exp $ .\" .\" Copyright (c) 1998 Manuel Bouyer. @@ -31,7 +31,6 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" - .Dd October 15, 1998 .Dt PCIIDE 4 .Os @@ -75,12 +74,20 @@ VIA Technologies VT82C586 and VT82C586A .Pp Some of these controllers are only available in multifunction PCI chips. .Pp -The 0x0001 flag forces the +The +.Li 0x0001 +flag forces the .Nm driver to use DMA when there is no explicit DMA mode setting support for -the controller but DMA is present. If the BIOS didn't configure the controller -properly, this can cause a machine hang. - +the controller but DMA is present. +If the BIOS didn't configure the controller properly, this can +cause a machine hang. +.Sh SEE ALSO +.Xr atapiscsi 4 , +.Xr intro 4 , +.Xr scsi 4 , +.Xr wd 4 , +.Xr wdc 4 .Sh BUGS There's no way to reliably know if a PCI064x controller is enabled or not. If the driver finds a PCI064x, it will assume it is enabled unless @@ -91,14 +98,8 @@ and another controller has been installed which uses the ISA legacy I/O ports and interrupts. .Pp Although this driver supports several UltraDMA/100 controllers, at this time -it only uses them in UltraDMA/66 modes. +it only uses them in UltraDMA/66 modes. .Pp The timings used for the PIO and DMA modes for controllers listed above -are for a PCI bus running at 30 or 33 Mhz. This driver may not -work properly on overclocked systems. -.Sh SEE ALSO -.Xr atapiscsi 4 , -.Xr intro 4 , -.Xr scsi 4 , -.Xr wd 4 , -.Xr wdc 4 +are for a PCI bus running at 30 or 33 Mhz. +This driver may not work properly on overclocked systems. |