--- src/share/man/man9/physio.9	2007/06/30 19:03:52	1.4
+++ src/share/man/man9/physio.9	2008/11/09 10:59:14	1.5
@@ -70,33 +70,38 @@
 .\" $FreeBSD: src/share/man/man9/physio.9,v 1.6.2.4 2001/12/17 11:30:18 ru Exp $
 .\" $DragonFly$
 .\"
-.Dd July 31, 2005
+.Dd November 9, 2008
 .Dt PHYSIO 9
 .Os
 .Sh NAME
-.Nm physio
+.Nm physread ,
+.Nm physwrite
 .Nd initiate I/O on raw devices
 .Sh SYNOPSIS
-.In sys/param.h
-.In sys/systm.h
 .In sys/buf.h
+.In sys/device.h
 .Ft int
-.Fn physio "dev_t dev" "struct uio *uio" "int ioflag"
+.Fn physread "struct dev_read_args *ap"
+.Ft int
+.Fn physwrite "struct dev_write_args *ap"
 .Sh DESCRIPTION
-The
-.Fn physio
-is a helper function typically called from character device read and write
+.Fn Physread
+and
+.Fn physwrite
+are helper functions typically called from character device read and write
 routines to start I/O on a user process buffer.
-It will call the
-.Xr BUF_STRATEGY 9
+They will call the
+.Fn dev_dstrategy
 routine one or more times depending on the size of transfer which is
 described by the
-.Fa uio
+.Fa ap
 argument.
 .Pp
 The maximum amount of data transferable in one iteration of the
-.Nm
-function is determined by the maximum I/O size supported by the device
+.Fn physread
+and
+.Fn physwrite
+functions is determined by the maximum I/O size supported by the device
 .Fa dev ,
 otherwise the value of
 .Dv DFLTPHYS
@@ -106,27 +111,27 @@ put to sleep with the wait message set t
 .Ql "physstr" .
 .Pp
 The
-.Nm
-function always awaits the completion of the entire requested transfer
+.Fn physread
+and
+.Fn physwrite
+functions always await the completion of the entire requested transfer
 before returning, unless an error condition is detected earlier.
 .Pp
-A break-down of the arguments follow:
-.Bl -tag -width indent
-.It Fa dev
-The device to interact with by using it as with the
-.Xr BUF_STRATEGY 9
-routine in order to initiate I/O.
-.It Fa uio
-The description of the entire transfer as requested by the user process.
-.It Fa ioflag
-Direction of transfer; the only valid settings are
-.Dv B_READ
+The
+.Fa ap
+argument is a pointer to a
+.Vt dev_read_args
+or
+.Vt dev_write_args
+structure, as passed to
+.Nm d_read
 or
-.Dv B_WRITE .
-.El
+.Nm d_write .
 .Sh RETURN VALUES
 If successful
-.Nm
+.Fn physread
+and
+.Fn physwrite
 will return 0.
 .Pp
 The
@@ -138,10 +143,11 @@ will be returned if the address range de
 is not accessible by the calling process or thread.
 .Pp
 Note that the actual transfer size may be less than requested by
-.Fa uio
+.Fa ap
 if the device signals an
 .Dq end of file
 condition.
 .Sh SEE ALSO
 .Xr read 2 ,
-.Xr write 2
+.Xr write 2 ,
+.Xr uio 9