Fix a couple of misuses of <acronym> to wrap COM[0-9] device names and

add <devicename> tags around the remaining untagged instances of the same.

PR:		docs/69221
Submitted by:	Warren Block <wblock@wonkity.com>

en_US.ISO8859-1/articles/console-server/article.sgml

@@ -1124,7 +1124,7 @@ exit 0</programlisting>
 	    <para>We run &os; 4 on a couple of &i386; PCs for various peripheral
 	      uses.  &os; usually uses a screen and keyboard for the
 	      console, but can be configured to use a serial port (usually the
-	      first serial port known as COM1 in DOS/&windows; or
+	      first serial port known as <devicename>COM1</devicename> in DOS/&windows; or
 	      <devicename>ttyd0</devicename> in &unix;).</para>
 
 	    <para>The cabling for these servers depends on the PC harware.  If
@@ -1296,7 +1296,7 @@ exit 0</programlisting>
       <para>Check that the kernel configuration file has
 	<literal>flags 0x10</literal> in the config line for the
 	<devicename>sio0</devicename> device.  This signals this device (known
-	as <literal>COM1</literal> in DOS/&windows; or
+	as <devicename>COM1</devicename> in DOS/&windows; or
 	<devicename>/dev/ttyd0</devicename> in &os;) can be used as a
 	console.  This flag is set on the <filename>GENERIC</filename> and
 	<filename>LINT</filename> sample configs, so is likely to be set in

en_US.ISO8859-1/articles/serial-uart/article.sgml

@@ -1154,16 +1154,16 @@
 	<para>The 8250/16450/16550 UART occupies eight contiguous I/O
 	  port addresses.  In the IBM PC, there are two defined
 	  locations for these eight ports and they are known
-	  collectively as COM1 and COM2.  The makers of PC-clones and
-	  add-on cards have created two additional areas known as COM3
-	  and COM4, but these extra COM ports conflict with other
+	  collectively as <devicename>COM1</devicename> and <devicename>COM2</devicename>.  The makers of PC-clones and
+	  add-on cards have created two additional areas known as <devicename>COM3</devicename>
+	  and <devicename>COM4</devicename>, but these extra COM ports conflict with other
 	  hardware on some systems.  The most common conflict is with
 	  video adapters that provide IBM 8514 emulation.</para>
 	      
-	<para>COM1 is located from 0x3f8 to 0x3ff and normally uses
-	  IRQ 4 COM2 is located from 0x2f8 to 0x2ff and normally uses
-	  IRQ 3 COM3 is located from 0x3e8 to 0x3ef and has no
-	  standardized IRQ COM4 is located from 0x2e8 to 0x2ef and has
+	<para><devicename>COM1</devicename> is located from 0x3f8 to 0x3ff and normally uses
+	  IRQ 4.  <devicename>COM2</devicename> is located from 0x2f8 to 0x2ff and normally uses
+	  IRQ 3.  <devicename>COM3</devicename> is located from 0x3e8 to 0x3ef and has no
+	  standardized IRQ.  <devicename>COM4</devicename> is located from 0x2e8 to 0x2ef and has
 	  no standardized IRQ.</para>
 	      
 	<para>A description of the I/O ports of the 8250/16450/16550

en_US.ISO8859-1/books/faq/book.sgml

@@ -10391,7 +10391,7 @@ sio1: type 16550A</programlisting>
 
         <answer>
           <para>The third serial port, <devicename>sio2</devicename>
-            (see &man.sio.4;, known as COM3 in DOS), is on
+            (see &man.sio.4;, known as <devicename>COM3</devicename> in DOS), is on
             <devicename>/dev/cuaa2</devicename> for dial-out devices,
             and on <devicename>/dev/ttyd2</devicename> for dial-in
             devices.  What is the difference between these two classes

en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml

@@ -1124,12 +1124,12 @@ device          sio1     at isa? port IO_COM2 irq 3
 device          sio2     at isa? disable port IO_COM3 irq 5
 device          sio3     at isa? disable port IO_COM4 irq 9</programlisting>
 
-    <para>These are the four serial ports referred to as COM1 through COM4
+    <para>These are the four serial ports referred to as <devicename>COM1</devicename> through <devicename>COM4</devicename>
       in the &ms-dos/&windows; world.</para>
 
     <note>
-      <para>If you have an internal modem on COM4 and a serial port at
-	COM2, you will have to change the IRQ of the modem to 2 (for
+      <para>If you have an internal modem on <devicename>COM4</devicename> and a serial port at
+	<devicename>COM2</devicename>, you will have to change the IRQ of the modem to 2 (for
 	obscure technical reasons, IRQ2 = IRQ 9) in order to access it
 	from &os;.  If you have a multiport serial card, check the
 	manual page for &man.sio.4; for more information on the proper
@@ -1137,11 +1137,11 @@ device          sio3     at isa? disable port IO_COM4 irq 9</programlisting>
 	S3 chips) use IO addresses in the form of
 	<literal>0x*2e8</literal>, and since many cheap serial cards do
 	not fully decode the 16-bit IO address space, they clash with
-	these cards making the COM4 port practically unavailable.</para>
+	these cards making the <devicename>COM4</devicename> port practically unavailable.</para>
 
       <para>Each serial port is required to have a unique IRQ (unless you
         are using one of the multiport cards where shared interrupts are
-	supported), so the default IRQs for COM3 and COM4 cannot be
+	supported), so the default IRQs for <devicename>COM3</devicename> and <devicename>COM4</devicename> cannot be
 	used.</para>
     </note>
 

en_US.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml

@@ -1788,7 +1788,7 @@ exit 1
 	  <devicename>sio</devicename> devices.  These are the COM
 	  ports we need.  If your modem acts like a standard serial
 	  port then you should see it listed on
-	  <devicename>sio1</devicename>, or COM2.  If so, you are not
+	  <devicename>sio1</devicename>, or <devicename>COM2</devicename>.  If so, you are not
 	  required to rebuild the kernel, you just need to make the
 	  serial device.  You can do this by changing your directory
 	  to <filename>/dev</filename> and running the
@@ -1799,7 +1799,7 @@ exit 1
 
 	<para>which will create the serial devices for your system.
 	  When matching up sio modem is on <devicename>sio1</devicename> or
-          <acronym>COM2</acronym> if you are in DOS, then your
+          <devicename>COM2</devicename> if you are in DOS, then your
 	  modem device would be <devicename>/dev/cuaa1</devicename>.</para>
     </sect2>
 

en_US.ISO8859-1/books/handbook/serialcomms/chapter.sgml

@@ -1945,7 +1945,7 @@ raisechar=^^</programlisting>
 
 	<step>
 	  <para>Connect the serial port.  The serial console will be
-	    on COM1.</para>
+	    on <devicename>COM1</devicename>.</para>
 	</step>
 
 	<step>