diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 0be0cdce6..9888c2a29 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,10 @@
+2002-07-24  Corinna Vinschen  <corinna@vinschen.de>
+
+	* fhandler_serial.cc: Change 'must_init_serial_line capability'
+	to 'supports_reading_modem_output_lines' throughout (negated meaning).
+	* wincap.cc: Ditto.
+	* wincap.h: Ditto.
+
 2002-07-23  Nicholas Wourms  <nwourms@netscape.net>
 
 	* cygwin.din (fcloseall): Add symbol for export.
diff --git a/winsup/cygwin/fhandler_serial.cc b/winsup/cygwin/fhandler_serial.cc
index 67e11908f..748eb4b28 100644
--- a/winsup/cygwin/fhandler_serial.cc
+++ b/winsup/cygwin/fhandler_serial.cc
@@ -272,7 +272,7 @@ fhandler_serial::open (path_conv *, int flags, mode_t mode)
   request TIOCMGET could return correct value of RTS and DTR lines.
   Important only for Win 9x systems */
 
-  if (wincap.must_init_serial_line ())
+  if (!wincap.supports_reading_modem_output_lines ())
     {
       if (EscapeCommFunction (get_handle (), SETDTR) == 0)
 	system_printf ("couldn't set initial state of DTR for %s, %E", get_name ());
@@ -409,7 +409,7 @@ fhandler_serial::ioctl (unsigned int cmd, void *buffer)
 	modemStatus |= TIOCM_RI;
       if (modemLines & MS_RLSD_ON)
 	modemStatus |= TIOCM_CD;
-      if (wincap.must_init_serial_line ())
+      if (!wincap.supports_reading_modem_output_lines ())
 	modemStatus |= rts | dtr;
       else
 	{
diff --git a/winsup/cygwin/wincap.cc b/winsup/cygwin/wincap.cc
index 69333375d..a702bfeea 100644
--- a/winsup/cygwin/wincap.cc
+++ b/winsup/cygwin/wincap.cc
@@ -46,7 +46,7 @@ static NO_COPY wincaps wincap_unknown = {
   has_valid_processorlevel:false,
   has_64bit_file_access:false,
   has_process_io_counters:false,
-  must_init_serial_line:true,
+  supports_reading_modem_output_lines:false,
 };
 
 static NO_COPY wincaps wincap_95 = {
@@ -84,7 +84,7 @@ static NO_COPY wincaps wincap_95 = {
   has_valid_processorlevel:false,
   has_64bit_file_access:false,
   has_process_io_counters:false,
-  must_init_serial_line:true,
+  supports_reading_modem_output_lines:false,
 };
 
 static NO_COPY wincaps wincap_95osr2 = {
@@ -122,7 +122,7 @@ static NO_COPY wincaps wincap_95osr2 = {
   has_valid_processorlevel:false,
   has_64bit_file_access:false,
   has_process_io_counters:false,
-  must_init_serial_line:true,
+  supports_reading_modem_output_lines:false,
 };
 
 static NO_COPY wincaps wincap_98 = {
@@ -160,7 +160,7 @@ static NO_COPY wincaps wincap_98 = {
   has_valid_processorlevel:true,
   has_64bit_file_access:false,
   has_process_io_counters:false,
-  must_init_serial_line:true,
+  supports_reading_modem_output_lines:false,
 };
 
 static NO_COPY wincaps wincap_98se = {
@@ -198,7 +198,7 @@ static NO_COPY wincaps wincap_98se = {
   has_valid_processorlevel:true,
   has_64bit_file_access:false,
   has_process_io_counters:false,
-  must_init_serial_line:true,
+  supports_reading_modem_output_lines:false,
 };
 
 static NO_COPY wincaps wincap_me = {
@@ -236,7 +236,7 @@ static NO_COPY wincaps wincap_me = {
   has_valid_processorlevel:true,
   has_64bit_file_access:false,
   has_process_io_counters:false,
-  must_init_serial_line:true,
+  supports_reading_modem_output_lines:false,
 };
 
 static NO_COPY wincaps wincap_nt3 = {
@@ -274,7 +274,7 @@ static NO_COPY wincaps wincap_nt3 = {
   has_valid_processorlevel:true,
   has_64bit_file_access:true,
   has_process_io_counters:false,
-  must_init_serial_line:false,
+  supports_reading_modem_output_lines:true,
 };
 
 static NO_COPY wincaps wincap_nt4 = {
@@ -312,7 +312,7 @@ static NO_COPY wincaps wincap_nt4 = {
   has_valid_processorlevel:true,
   has_64bit_file_access:true,
   has_process_io_counters:false,
-  must_init_serial_line:false,
+  supports_reading_modem_output_lines:true,
 };
 
 static NO_COPY wincaps wincap_nt4sp4 = {
@@ -350,7 +350,7 @@ static NO_COPY wincaps wincap_nt4sp4 = {
   has_valid_processorlevel:true,
   has_64bit_file_access:true,
   has_process_io_counters:false,
-  must_init_serial_line:false,
+  supports_reading_modem_output_lines:true,
 };
 
 static NO_COPY wincaps wincap_2000 = {
@@ -388,7 +388,7 @@ static NO_COPY wincaps wincap_2000 = {
   has_valid_processorlevel:true,
   has_64bit_file_access:true,
   has_process_io_counters:true,
-  must_init_serial_line:false,
+  supports_reading_modem_output_lines:true,
 };
 
 static NO_COPY wincaps wincap_xp = {
@@ -426,7 +426,7 @@ static NO_COPY wincaps wincap_xp = {
   has_valid_processorlevel:true,
   has_64bit_file_access:true,
   has_process_io_counters:true,
-  must_init_serial_line:false,
+  supports_reading_modem_output_lines:true,
 };
 
 wincapc wincap;
diff --git a/winsup/cygwin/wincap.h b/winsup/cygwin/wincap.h
index c2a4af872..c24b36ae5 100644
--- a/winsup/cygwin/wincap.h
+++ b/winsup/cygwin/wincap.h
@@ -47,7 +47,7 @@ struct wincaps
   unsigned has_valid_processorlevel			: 1;
   unsigned has_64bit_file_access			: 1;
   unsigned has_process_io_counters                      : 1;
-  unsigned must_init_serial_line                        : 1;
+  unsigned supports_reading_modem_output_lines          : 1;
 };
 
 class wincapc
@@ -99,7 +99,7 @@ public:
   bool  IMPLEMENT (has_valid_processorlevel)
   bool  IMPLEMENT (has_64bit_file_access)
   bool  IMPLEMENT (has_process_io_counters)
-  bool  IMPLEMENT (must_init_serial_line)
+  bool  IMPLEMENT (supports_reading_modem_output_lines)
 
 #undef IMPLEMENT
 };