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[pf3gnuchains/gcc-fork.git] / gcc / ada / g-sercom.ads

diff --git a/gcc/ada/g-sercom.ads b/gcc/ada/g-sercom.ads
index 3d327ce..8b4c559 100644 (file)
--- a/gcc/ada/g-sercom.ads
+++ b/gcc/ada/g-sercom.ads
@@ -45,13 +45,17 @@ package GNAT.Serial_Communications is
    --  A serial com port name
 
    function Name (Number : Positive) return Port_Name;
-   --  Returns the port name for the given port number
+   --  Returns a possible port name for the given legacy PC architecture serial
+   --  port number (COM<number>: on Windows, ttyS<number-1> on Linux).
+   --  Note that this function does not support other kinds of serial ports
+   --  nor operating systems other than Windows and Linux. For all other
+   --  cases, an explicit port name can be passed directly to Open.
 
    type Data_Rate is
      (B1200, B2400, B4800, B9600, B19200, B38400, B57600, B115200);
    --  Speed of the communication
 
-   type Data_Bits is (B8, B7);
+   type Data_Bits is (CS8, CS7);
    --  Communication bits
 
    type Stop_Bits_Number is (One, Two);
@@ -71,7 +75,7 @@ package GNAT.Serial_Communications is
    procedure Set
      (Port      : Serial_Port;
       Rate      : Data_Rate        := B9600;
-      Bits      : Data_Bits        := B8;
+      Bits      : Data_Bits        := CS8;
       Stop_Bits : Stop_Bits_Number := One;
       Parity    : Parity_Check     := None;
       Block     : Boolean          := True;