@c -*-texinfo-*-
@c This is part of the GNU Emacs Lisp Reference Manual.
@c Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2001,
-@c 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+@c 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
@c See the file elisp.texi for copying conditions.
@setfilename ../../info/processes
@node Processes, Display, Abbrevs, Top
system to use (@pxref{Process Information}). Otherwise, the coding
system comes from @code{coding-system-for-read}, if that is
non-@code{nil}; or else from the defaulting mechanism (@pxref{Default
-Coding Systems}).
+Coding Systems}). If the text output by a process contains null
+bytes, Emacs by default uses @code{no-conversion} for it; see
+@ref{Lisp and Coding Systems, inhibit-null-byte-detection}, for how to
+control this behavior.
@strong{Warning:} Coding systems such as @code{undecided} which
determine the coding system from the data do not work entirely
all other arguments and does not configure the port. This may be
useful for special serial ports such as Bluetooth-to-serial converters
which can only be configured through AT commands sent through the
-connection. You can use the value of @code{nil} for @var{speed} only
-for connections that are already open by a previous call to
+connection. The value of @code{nil} for @var{speed} is valid only for
+connections that were already opened by a previous call to
@code{make-serial-process} or @code{serial-term}.
@item :bytesize @var{bytesize}