<!-- Copyright (C) 2003 Red Hat, Inc. -->
|
<!-- Copyright (C) 2003 Red Hat, Inc. -->
|
<!-- This material may be distributed only subject to the terms -->
|
<!-- This material may be distributed only subject to the terms -->
|
<!-- and conditions set forth in the Open Publication License, v1.0 -->
|
<!-- and conditions set forth in the Open Publication License, v1.0 -->
|
<!-- or later (the latest version is presently available at -->
|
<!-- or later (the latest version is presently available at -->
|
<!-- http://www.opencontent.org/openpub/). -->
|
<!-- http://www.opencontent.org/openpub/). -->
|
<!-- Distribution of the work or derivative of the work in any -->
|
<!-- Distribution of the work or derivative of the work in any -->
|
<!-- standard (paper) book form is prohibited unless prior -->
|
<!-- standard (paper) book form is prohibited unless prior -->
|
<!-- permission is obtained from the copyright holder. -->
|
<!-- permission is obtained from the copyright holder. -->
|
<HTML
|
<HTML
|
><HEAD
|
><HEAD
|
><TITLE
|
><TITLE
|
> TTY driver</TITLE
|
> TTY driver</TITLE
|
><meta name="MSSmartTagsPreventParsing" content="TRUE">
|
><meta name="MSSmartTagsPreventParsing" content="TRUE">
|
<META
|
<META
|
NAME="GENERATOR"
|
NAME="GENERATOR"
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
|
"><LINK
|
"><LINK
|
REL="HOME"
|
REL="HOME"
|
TITLE="eCos Reference Manual"
|
TITLE="eCos Reference Manual"
|
HREF="ecos-ref.html"><LINK
|
HREF="ecos-ref.html"><LINK
|
REL="UP"
|
REL="UP"
|
TITLE="Serial driver details"
|
TITLE="Serial driver details"
|
HREF="io-serial-driver-details.html"><LINK
|
HREF="io-serial-driver-details.html"><LINK
|
REL="PREVIOUS"
|
REL="PREVIOUS"
|
TITLE="Serial driver details"
|
TITLE="Serial driver details"
|
HREF="io-serial-driver-details.html"><LINK
|
HREF="io-serial-driver-details.html"><LINK
|
REL="NEXT"
|
REL="NEXT"
|
TITLE="How to Write a Driver"
|
TITLE="How to Write a Driver"
|
HREF="io-how-to-write-a-driver.html"></HEAD
|
HREF="io-how-to-write-a-driver.html"></HEAD
|
><BODY
|
><BODY
|
CLASS="SECTION"
|
CLASS="SECTION"
|
BGCOLOR="#FFFFFF"
|
BGCOLOR="#FFFFFF"
|
TEXT="#000000"
|
TEXT="#000000"
|
LINK="#0000FF"
|
LINK="#0000FF"
|
VLINK="#840084"
|
VLINK="#840084"
|
ALINK="#0000FF"
|
ALINK="#0000FF"
|
><DIV
|
><DIV
|
CLASS="NAVHEADER"
|
CLASS="NAVHEADER"
|
><TABLE
|
><TABLE
|
SUMMARY="Header navigation table"
|
SUMMARY="Header navigation table"
|
WIDTH="100%"
|
WIDTH="100%"
|
BORDER="0"
|
BORDER="0"
|
CELLPADDING="0"
|
CELLPADDING="0"
|
CELLSPACING="0"
|
CELLSPACING="0"
|
><TR
|
><TR
|
><TH
|
><TH
|
COLSPAN="3"
|
COLSPAN="3"
|
ALIGN="center"
|
ALIGN="center"
|
>eCos Reference Manual</TH
|
>eCos Reference Manual</TH
|
></TR
|
></TR
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="10%"
|
WIDTH="10%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="bottom"
|
VALIGN="bottom"
|
><A
|
><A
|
HREF="io-serial-driver-details.html"
|
HREF="io-serial-driver-details.html"
|
ACCESSKEY="P"
|
ACCESSKEY="P"
|
>Prev</A
|
>Prev</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="80%"
|
WIDTH="80%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="bottom"
|
VALIGN="bottom"
|
>Chapter 16. Serial driver details</TD
|
>Chapter 16. Serial driver details</TD
|
><TD
|
><TD
|
WIDTH="10%"
|
WIDTH="10%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="bottom"
|
VALIGN="bottom"
|
><A
|
><A
|
HREF="io-how-to-write-a-driver.html"
|
HREF="io-how-to-write-a-driver.html"
|
ACCESSKEY="N"
|
ACCESSKEY="N"
|
>Next</A
|
>Next</A
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><HR
|
><HR
|
ALIGN="LEFT"
|
ALIGN="LEFT"
|
WIDTH="100%"></DIV
|
WIDTH="100%"></DIV
|
><DIV
|
><DIV
|
CLASS="SECTION"
|
CLASS="SECTION"
|
><H1
|
><H1
|
CLASS="SECTION"
|
CLASS="SECTION"
|
><A
|
><A
|
NAME="IO-TTY-DRIVER">TTY driver</H1
|
NAME="IO-TTY-DRIVER">TTY driver</H1
|
><P
|
><P
|
>Use the include file <TT
|
>Use the include file <TT
|
CLASS="FILENAME"
|
CLASS="FILENAME"
|
><cyg/io/ttyio.h></TT
|
><cyg/io/ttyio.h></TT
|
> for
|
> for
|
this driver.</P
|
this driver.</P
|
><P
|
><P
|
>This driver is built on top of the simple
|
>This driver is built on top of the simple
|
serial driver and is typically used for a device that interfaces with
|
serial driver and is typically used for a device that interfaces with
|
humans such as a terminal. It provides some minimal formatting of data
|
humans such as a terminal. It provides some minimal formatting of data
|
on output and allows for line-oriented editing on input.</P
|
on output and allows for line-oriented editing on input.</P
|
><DIV
|
><DIV
|
CLASS="SECTION"
|
CLASS="SECTION"
|
><H2
|
><H2
|
CLASS="SECTION"
|
CLASS="SECTION"
|
><A
|
><A
|
NAME="AEN10715">Runtime configuration</H2
|
NAME="AEN10715">Runtime configuration</H2
|
><P
|
><P
|
>Runtime configuration is achieved by exchanging data structures with
|
>Runtime configuration is achieved by exchanging data structures with
|
the driver via the <TT
|
the driver via the <TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cyg_io_set_config()</TT
|
>cyg_io_set_config()</TT
|
> and
|
> and
|
<TT
|
<TT
|
CLASS="FUNCTION"
|
CLASS="FUNCTION"
|
>cyg_io_get_config()</TT
|
>cyg_io_get_config()</TT
|
> functions.</P
|
> functions.</P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>typedef struct {
|
>typedef struct {
|
cyg_uint32 tty_out_flags;
|
cyg_uint32 tty_out_flags;
|
cyg_uint32 tty_in_flags;
|
cyg_uint32 tty_in_flags;
|
} cyg_tty_info_t;</PRE
|
} cyg_tty_info_t;</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>The field <TT
|
>The field <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_out_flags</I
|
>tty_out_flags</I
|
></TT
|
></TT
|
>
|
>
|
is used to control what happens to data as it is send to the serial
|
is used to control what happens to data as it is send to the serial
|
port. It contains a bitmap comprised of the bits as defined by the
|
port. It contains a bitmap comprised of the bits as defined by the
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYG_TTY_OUT_FLAGS_xxx</TT
|
>CYG_TTY_OUT_FLAGS_xxx</TT
|
> values below. </P
|
> values below. </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>#define CYG_TTY_OUT_FLAGS_CRLF 0x0001 // Map '\n' => '\n\r' on output</PRE
|
>#define CYG_TTY_OUT_FLAGS_CRLF 0x0001 // Map '\n' => '\n\r' on output</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>If this bit is set in <TT
|
>If this bit is set in <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_out_flags</I
|
>tty_out_flags</I
|
></TT
|
></TT
|
>,
|
>,
|
any occurrence of the character "\n" will
|
any occurrence of the character "\n" will
|
be replaced by the sequence "\n\r" before
|
be replaced by the sequence "\n\r" before
|
being sent to the device.</P
|
being sent to the device.</P
|
><P
|
><P
|
>The field <TT
|
>The field <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_in_flags</I
|
>tty_in_flags</I
|
></TT
|
></TT
|
>
|
>
|
is used to control how data is handled as it comes from the serial
|
is used to control how data is handled as it comes from the serial
|
port. It contains a bitmap comprised of the bits as defined by the
|
port. It contains a bitmap comprised of the bits as defined by the
|
<TT
|
<TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYG_TTY_IN_FLAGS_xxx</TT
|
>CYG_TTY_IN_FLAGS_xxx</TT
|
> values below. </P
|
> values below. </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>#define CYG_TTY_IN_FLAGS_CR 0x0001 // Map '\r' => '\n' on input</PRE
|
>#define CYG_TTY_IN_FLAGS_CR 0x0001 // Map '\r' => '\n' on input</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>If this bit is set in <TT
|
>If this bit is set in <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_in_flags</I
|
>tty_in_flags</I
|
></TT
|
></TT
|
>, the
|
>, the
|
character "\r" (“return” or “enter” on
|
character "\r" (“return” or “enter” on
|
most keyboards) will be mapped to "\n".</P
|
most keyboards) will be mapped to "\n".</P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>#define CYG_TTY_IN_FLAGS_CRLF 0x0002 // Map '\n\r' => '\n' on input</PRE
|
>#define CYG_TTY_IN_FLAGS_CRLF 0x0002 // Map '\n\r' => '\n' on input</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>If this bit is set in <TT
|
>If this bit is set in <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_in_flags</I
|
>tty_in_flags</I
|
></TT
|
></TT
|
>, the
|
>, the
|
character sequence "\n\r" (often sent by DOS/Windows
|
character sequence "\n\r" (often sent by DOS/Windows
|
based terminals) will be mapped to "\n". </P
|
based terminals) will be mapped to "\n". </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>#define CYG_TTY_IN_FLAGS_BINARY 0x0004 // No input processing</PRE
|
>#define CYG_TTY_IN_FLAGS_BINARY 0x0004 // No input processing</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>If this bit is set in <TT
|
>If this bit is set in <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_in_flags</I
|
>tty_in_flags</I
|
></TT
|
></TT
|
>, the
|
>, the
|
input will not be manipulated in any way before being placed in
|
input will not be manipulated in any way before being placed in
|
the user’s buffer. </P
|
the user’s buffer. </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>#define CYG_TTY_IN_FLAGS_ECHO 0x0008 // Echo characters as processed</PRE
|
>#define CYG_TTY_IN_FLAGS_ECHO 0x0008 // Echo characters as processed</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>If this bit is set in <TT
|
>If this bit is set in <TT
|
CLASS="STRUCTFIELD"
|
CLASS="STRUCTFIELD"
|
><I
|
><I
|
>tty_in_flags</I
|
>tty_in_flags</I
|
></TT
|
></TT
|
>, characters
|
>, characters
|
will be echoed back to the serial port as they are processed. </P
|
will be echoed back to the serial port as they are processed. </P
|
></DIV
|
></DIV
|
><DIV
|
><DIV
|
CLASS="SECTION"
|
CLASS="SECTION"
|
><H2
|
><H2
|
CLASS="SECTION"
|
CLASS="SECTION"
|
><A
|
><A
|
NAME="AEN10742">API details</H2
|
NAME="AEN10742">API details</H2
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>cyg_io_read(handle, buf, len)</PRE
|
>cyg_io_read(handle, buf, len)</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>This function is used to read data from the device. In the
|
>This function is used to read data from the device. In the
|
default case, data is read until an end-of-line character ("\n"
|
default case, data is read until an end-of-line character ("\n"
|
or "\r") is read. Additionally, the characters are echoed
|
or "\r") is read. Additionally, the characters are echoed
|
back to the [terminal] device. Minimal editing
|
back to the [terminal] device. Minimal editing
|
of the input is also supported. </P
|
of the input is also supported. </P
|
><DIV
|
><DIV
|
CLASS="NOTE"
|
CLASS="NOTE"
|
><BLOCKQUOTE
|
><BLOCKQUOTE
|
CLASS="NOTE"
|
CLASS="NOTE"
|
><P
|
><P
|
><B
|
><B
|
>Note: </B
|
>Note: </B
|
>When connecting to a remote target via GDB it is not possible
|
>When connecting to a remote target via GDB it is not possible
|
to provide console input while GDB is connected. The GDB remote
|
to provide console input while GDB is connected. The GDB remote
|
protocol does not support input. Users must disconnect from GDB
|
protocol does not support input. Users must disconnect from GDB
|
if this functionality is required.</P
|
if this functionality is required.</P
|
></BLOCKQUOTE
|
></BLOCKQUOTE
|
></DIV
|
></DIV
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>
|
>
|
cyg_io_write(handle, buf, len)</PRE
|
cyg_io_write(handle, buf, len)</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>This function is used to send data to the device. In the default
|
>This function is used to send data to the device. In the default
|
case, the end-of-line character "\n" is replaced by the
|
case, the end-of-line character "\n" is replaced by the
|
sequence "\n\r". </P
|
sequence "\n\r". </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>cyg_io_get_config(handle, key, buf, len)</PRE
|
>cyg_io_get_config(handle, key, buf, len)</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>This function is used to get information about the channel’s
|
>This function is used to get information about the channel’s
|
configuration at runtime. </P
|
configuration at runtime. </P
|
><P
|
><P
|
></P
|
></P
|
><DIV
|
><DIV
|
CLASS="VARIABLELIST"
|
CLASS="VARIABLELIST"
|
><DL
|
><DL
|
><DT
|
><DT
|
><TT
|
><TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYG_IO_GET_CONFIG_TTY_INFO</TT
|
>CYG_IO_GET_CONFIG_TTY_INFO</TT
|
></DT
|
></DT
|
><DD
|
><DD
|
><P
|
><P
|
></P
|
></P
|
><DIV
|
><DIV
|
CLASS="VARIABLELIST"
|
CLASS="VARIABLELIST"
|
><DL
|
><DL
|
><DT
|
><DT
|
>Buf type:</DT
|
>Buf type:</DT
|
><DD
|
><DD
|
><P
|
><P
|
>cyg_tty_info_t</P
|
>cyg_tty_info_t</P
|
></DD
|
></DD
|
><DT
|
><DT
|
>Function:</DT
|
>Function:</DT
|
><DD
|
><DD
|
><P
|
><P
|
>This function retrieves the current state of the
|
>This function retrieves the current state of the
|
driver.
|
driver.
|
</P
|
</P
|
></DD
|
></DD
|
></DL
|
></DL
|
></DIV
|
></DIV
|
></DD
|
></DD
|
></DL
|
></DL
|
></DIV
|
></DIV
|
><P
|
><P
|
>Serial driver keys (see above) may also be specified
|
>Serial driver keys (see above) may also be specified
|
in which case the call is passed directly to the serial
|
in which case the call is passed directly to the serial
|
driver. </P
|
driver. </P
|
><TABLE
|
><TABLE
|
BORDER="5"
|
BORDER="5"
|
BGCOLOR="#E0E0F0"
|
BGCOLOR="#E0E0F0"
|
WIDTH="70%"
|
WIDTH="70%"
|
><TR
|
><TR
|
><TD
|
><TD
|
><PRE
|
><PRE
|
CLASS="PROGRAMLISTING"
|
CLASS="PROGRAMLISTING"
|
>cyg_io_set_config(handle, key, buf, len)</PRE
|
>cyg_io_set_config(handle, key, buf, len)</PRE
|
></TD
|
></TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
><P
|
><P
|
>This function is used to modify the channel’s configuration
|
>This function is used to modify the channel’s configuration
|
at runtime. </P
|
at runtime. </P
|
><P
|
><P
|
></P
|
></P
|
><DIV
|
><DIV
|
CLASS="VARIABLELIST"
|
CLASS="VARIABLELIST"
|
><DL
|
><DL
|
><DT
|
><DT
|
><TT
|
><TT
|
CLASS="LITERAL"
|
CLASS="LITERAL"
|
>CYG_IO_SET_CONFIG_TTY_INFO</TT
|
>CYG_IO_SET_CONFIG_TTY_INFO</TT
|
></DT
|
></DT
|
><DD
|
><DD
|
><P
|
><P
|
></P
|
></P
|
><DIV
|
><DIV
|
CLASS="VARIABLELIST"
|
CLASS="VARIABLELIST"
|
><DL
|
><DL
|
><DT
|
><DT
|
>Buf type:</DT
|
>Buf type:</DT
|
><DD
|
><DD
|
><P
|
><P
|
>cyg_tty_info_t</P
|
>cyg_tty_info_t</P
|
></DD
|
></DD
|
><DT
|
><DT
|
>Function:</DT
|
>Function:</DT
|
><DD
|
><DD
|
><P
|
><P
|
>This function changes the current state of the
|
>This function changes the current state of the
|
driver.</P
|
driver.</P
|
></DD
|
></DD
|
></DL
|
></DL
|
></DIV
|
></DIV
|
></DD
|
></DD
|
></DL
|
></DL
|
></DIV
|
></DIV
|
><P
|
><P
|
>Serial driver
|
>Serial driver
|
keys (see above) may also be specified in which case the
|
keys (see above) may also be specified in which case the
|
call is passed directly to the serial driver. </P
|
call is passed directly to the serial driver. </P
|
></DIV
|
></DIV
|
></DIV
|
></DIV
|
><DIV
|
><DIV
|
CLASS="NAVFOOTER"
|
CLASS="NAVFOOTER"
|
><HR
|
><HR
|
ALIGN="LEFT"
|
ALIGN="LEFT"
|
WIDTH="100%"><TABLE
|
WIDTH="100%"><TABLE
|
SUMMARY="Footer navigation table"
|
SUMMARY="Footer navigation table"
|
WIDTH="100%"
|
WIDTH="100%"
|
BORDER="0"
|
BORDER="0"
|
CELLPADDING="0"
|
CELLPADDING="0"
|
CELLSPACING="0"
|
CELLSPACING="0"
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="io-serial-driver-details.html"
|
HREF="io-serial-driver-details.html"
|
ACCESSKEY="P"
|
ACCESSKEY="P"
|
>Prev</A
|
>Prev</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="34%"
|
WIDTH="34%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="ecos-ref.html"
|
HREF="ecos-ref.html"
|
ACCESSKEY="H"
|
ACCESSKEY="H"
|
>Home</A
|
>Home</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="io-how-to-write-a-driver.html"
|
HREF="io-how-to-write-a-driver.html"
|
ACCESSKEY="N"
|
ACCESSKEY="N"
|
>Next</A
|
>Next</A
|
></TD
|
></TD
|
></TR
|
></TR
|
><TR
|
><TR
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="left"
|
ALIGN="left"
|
VALIGN="top"
|
VALIGN="top"
|
>Serial driver details</TD
|
>Serial driver details</TD
|
><TD
|
><TD
|
WIDTH="34%"
|
WIDTH="34%"
|
ALIGN="center"
|
ALIGN="center"
|
VALIGN="top"
|
VALIGN="top"
|
><A
|
><A
|
HREF="io-serial-driver-details.html"
|
HREF="io-serial-driver-details.html"
|
ACCESSKEY="U"
|
ACCESSKEY="U"
|
>Up</A
|
>Up</A
|
></TD
|
></TD
|
><TD
|
><TD
|
WIDTH="33%"
|
WIDTH="33%"
|
ALIGN="right"
|
ALIGN="right"
|
VALIGN="top"
|
VALIGN="top"
|
>How to Write a Driver</TD
|
>How to Write a Driver</TD
|
></TR
|
></TR
|
></TABLE
|
></TABLE
|
></DIV
|
></DIV
|
></BODY
|
></BODY
|
></HTML
|
></HTML
|
|
|
