diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libarch/alpha/inb.2 | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/lib/libarch/alpha/inb.2 b/lib/libarch/alpha/inb.2 index 6fb17a0121b..dcf5a23b808 100644 --- a/lib/libarch/alpha/inb.2 +++ b/lib/libarch/alpha/inb.2 @@ -1,4 +1,4 @@ -.\" $OpenBSD: inb.2,v 1.3 2003/03/06 04:07:37 david Exp $ +.\" $OpenBSD: inb.2,v 1.4 2003/05/30 10:21:31 jmc Exp $ .\" .\" Copyright (c) 2002 Matthieu Herrb .\" All rights reserved. @@ -42,9 +42,9 @@ .Nm outw , .Nm readb , .Nm readl , -.Nm readw , +.Nm readw , .Nm unmap_memory , -.Nm writeb , +.Nm writeb , .Nm writel , .Nm writew .Nd Alpha devices I/O ports and memory access functions @@ -83,41 +83,41 @@ .Fn writew "void *handle" "u_int32_t offset" "u_int16_t val" .Sh DESCRIPTION The functions in libalpha give userland programs access to the I/O -ports on the OpenBSD/alpha platform. +ports on the OpenBSD/alpha platform. .Pp -The +The .Fn in* -functions return data read from the specified I/O port. +functions return data read from the specified I/O port. .Pp -The +The .Fn out* -functions write data to the specified I/O port. +functions write data to the specified I/O port. .Pp .Fn ioperm -enables access to the specified port numbers if +enables access to the specified port numbers if .Fa on -is +is .Dv TRUE -and disables access if +and disables access if .Fa on -is -.Dv FALSE . -.Pp -The -.Fn map_memory +is +.Dv FALSE . +.Pp +The +.Fn map_memory function allows a user program to map part of a device memory. .Pp -The +The .Fn unmap_memory function unmaps memory that was previously mapped by -.Fn map_memory . +.Fn map_memory . .Pp The .Fn read* functions read data from device memory previously mapped by -.Fn map_memory . +.Fn map_memory . .Pp -The +The .Fn write* functions write data to the device memory previously mapped by .Fn map_memory . @@ -128,6 +128,6 @@ These functions originally appeared in .Fx . .Sh CAVEATS Only BWX bus access method is supported for now. Machines requiring -swiz type access are not supported. +swiz type access are not supported. .Pp -Root credentials are needed to use these functions. +Root credentials are needed to use these functions. |