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Document the use of flags for PIO/DMA/UDMA settings/disable.

This commit is contained in:
bouyer 1998-12-02 11:05:59 +00:00
parent ab57245c0f
commit c0a73358a2
3 changed files with 21 additions and 7 deletions
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7
share/man/man4/cd.4
View File

@ -1,4 +1,4 @@
.\" $NetBSD: cd.4,v 1.8 1998/07/13 12:14:24 hpeyerl Exp $
.\" $NetBSD: cd.4,v 1.9 1998/12/02 11:05:59 bouyer Exp $
.\"
.\" Copyright (c) 1996
.\" Julian Elischer <julian@freebsd.org>. All rights reserved.
@ -34,7 +34,7 @@
.Sh SYNOPSIS
.Cd "cd* at scsibus? target ? lun ?"
.Cd "cd1 at scsibus0 target 4 lun 0"
.Cd "cd* at atapibus? drive ?"
.Cd "cd* at atapibus? drive ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm cd
@ -69,6 +69,9 @@ type devices will be `attached' to the
.Nm
driver.
.Pp
For the use of flags with ATAPI devices, see
.Xr wd 4 .
.Pp
The system utility
.Xr disklabel 8
may be used to read the synthesized

7
share/man/man4/sd.4
View File

@ -1,4 +1,4 @@
.\" $NetBSD: sd.4,v 1.6 1998/06/10 11:15:21 fair Exp $
.\" $NetBSD: sd.4,v 1.7 1998/12/02 11:05:59 bouyer Exp $
.\"
.\" Copyright (c) 1996
.\" Julian Elischer <julian@freebsd.org>. All rights reserved.
@ -34,7 +34,7 @@
.Sh SYNOPSIS
.Cd sd* at scsibus? target ? lun ?
.Cd sd3 at scsibus0 target 3 lun 0
.Cd "sd* at atapibus? drive ?"
.Cd "sd* at atapibus? drive ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
@ -74,6 +74,9 @@ Any devices found which answer as
type devices will be attached to the
.Nm
driver.
.Pp
For the use of flags with ATAPI devices, see
.Xr wd 4 .
.\"In
.\".Tn FreeBSD
.\"releases prior to 2.1, the first found was attached as

14
share/man/man4/wd.4
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@ -1,4 +1,4 @@
.\" $NetBSD: wd.4,v 1.1 1998/10/19 12:44:15 bouyer Exp $
.\" $NetBSD: wd.4,v 1.2 1998/12/02 11:05:59 bouyer Exp $
.\"
.\"
.\" Copyright (c) 1994 James A. Jegers
@ -30,14 +30,22 @@
.Nm wd
.Nd WD100x compatible hard disk driver
.Sh SYNOPSIS
.Cd "wd* at wdc? channel ? drive ?"
.Cd "wd* at pciide? channel ? drive ?"
.Cd "wd* at wdc? channel ? drive ? flags 0x0000"
.Cd "wd* at pciide? channel ? drive ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm wd
driver supports hard disk which emulate the Western
Digital WD100x. This includes standard MFM, RLL, ESDI, IDE and EIDE
drives.
.Pp
The flags are used only with controllers with mode settings support (like
some PCIIDE controllers). The first 4 bytes of the flags define the PIO mode
to use, the second DMA mode and the third UltraDMA mode. For each group of 4
bytes, the 3 lower define the mode to use, and the last one must be 1 for the
setting to be used. For DMA and UDMA, 0xf means 'disable'. For example, 0x0fac
means 'use PIO mode 4 DMA mode 2, disable UltraDMA'. 0x0000 means "use whatever
the drive claims to support.
.Sh SEE ALSO
.Xr intro 4
.Xr wdc 4