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Sternly advise against `pcictl read/write'. Use .Cm, not .Nm, while here.

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This commit is contained in:
riastradh 2014-09-10 21:09:32 +00:00
parent 59bf05d0af
commit 3393ff7dbb
1 changed files with 21 additions and 3 deletions
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24
usr.sbin/pcictl/pcictl.8
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@ -1,4 +1,4 @@
.\" $NetBSD: pcictl.8,v 1.14 2014/09/01 07:11:19 manu Exp $
.\" $NetBSD: pcictl.8,v 1.15 2014/09/10 21:09:32 riastradh Exp $
.\"
.\" Copyright 2001 Wasabi Systems, Inc.
.\" All rights reserved.
@ -84,7 +84,7 @@ If the bus is not specified, it defaults to the bus number of the
PCI bus specified on the command line.
If the function is not specified, it defaults to 0.
.Pp
.Nm read
.Cm read
.Op Fl b Ar bus
.Fl d Ar device
.Op Fl f Ar function
@ -96,7 +96,16 @@ If the bus is not specified, it defaults to the bus number of the
PCI bus specified on the command line.
If the function is not specified, it defaults to 0.
.Pp
.Nm write
.Em WARNING:
.Nm
.Cm read
is a dangerous command that can damage hardware and panic the operating
system, even though it appears to be a harmless read-only operation.
It is meant as a diagnostic tool for experiments or to debug device
drivers.
Do not use it as a substitute for a device driver!
.Pp
.Cm write
.Op Fl b Ar bus
.Fl d Ar device
.Op Fl f Ar function
@ -108,6 +117,15 @@ configuration register.
If the bus is not specified, it defaults to the bus number of the
PCI bus specified on the command line.
If the function is not specified, it defaults to 0.
.Pp
.Em WARNING:
.Nm
.Cm read
is a dangerous command that can damage hardware and panic the operating
system.
It is meant as a diagnostic tool for experiments or to debug device
drivers.
Do not use it as a substitute for a device driver!
.Sh FILES
.Pa /dev/pci*
- PCI bus device nodes