Index: qemu-doc.texi
===================================================================
RCS file: /sources/qemu/qemu/qemu-doc.texi,v
retrieving revision 1.179
diff -u -p -r1.179 qemu-doc.texi
--- qemu-doc.texi	14 Jan 2008 22:09:11 -0000	1.179
+++ qemu-doc.texi	17 Jan 2008 14:46:37 -0000
@@ -525,6 +525,10 @@ Pass through the host device identified 
 @item host:vendor_id:product_id
 Pass through the host device identified by vendor_id:product_id (Linux only).
 
address@hidden serial:address@hidden,address@hidden:@var{dev}
+Serial converter to host character device @var{dev}, see @code{-serial} for the
+available devices.
+
 @end table
 
 @end table
@@ -1562,7 +1566,7 @@ as necessary to connect multiple USB dev
 USB devices can be connected with the @option{-usbdevice} commandline option
 or the @code{usb_add} monitor command.  Available devices are:
 
address@hidden @var
address@hidden @code
 @item @code{mouse}
 Virtual Mouse.  This will override the PS/2 mouse emulation when activated.
 @item @code{tablet}
@@ -1583,6 +1587,16 @@ above but it can be used with the tslib 
 coordinates it reports touch pressure.
 @item @code{keyboard}
 Standard USB keyboard.  Will override the PS/2 keyboard (if present).
address@hidden @code{serial}:address@hidden,address@hidden:@var{dev}
+Serial converter. This emulates an FTDI FT232BM chip connected to host character
+device @var{dev}. The available character devices are the same as for the
address@hidden option. The @code{vendorid} and @code{productid} options can be
+used to override the default 0403:FF00. For instance, 
address@hidden
+usb_add serial:productid=FA00:tcp:192.168.0.2:4444
address@hidden example
+will connect to tcp port 4444 of ip 192.168.0.2, and plug that to the virtual
+serial converter, faking a Matrix Orbital LCD Display (USB ID 0403:FA00).
 @end table
 
 @node host_usb_devices