diff options
| author | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-08-10 05:39:21 +0000 |
|---|---|---|
| committer | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-08-10 05:39:21 +0000 |
| commit | a2ddd00bfec1fa0f16da093e72a5277641e39470 (patch) | |
| tree | d94f6035539672e79345eb7edcd59591427e0c71 /MdePkg/Include/Library | |
| parent | bdf37b3c46c803a6c60c9422ebded5bcd9e7f512 (diff) | |
| download | edk2-platforms-a2ddd00bfec1fa0f16da093e72a5277641e39470.tar.xz | |
Add SerialPortPoll Api in SerialPortLib to Poll the serial device to see if there is any data waiting.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5624 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Include/Library')
| -rw-r--r-- | MdePkg/Include/Library/SerialPortLib.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/SerialPortLib.h b/MdePkg/Include/Library/SerialPortLib.h index dc4031a974..59c5c27e3f 100644 --- a/MdePkg/Include/Library/SerialPortLib.h +++ b/MdePkg/Include/Library/SerialPortLib.h @@ -70,5 +70,21 @@ SerialPortRead ( IN UINTN NumberOfBytes
);
+/**
+ Poll the serial device to see if there is any data waiting.
+
+ If there is data waiting to be read from the serial port, then return
+ TRUE. If there is no data waiting to be read from the serial port, then
+ return FALSE.
+
+ @retval TRUE Data is waiting to be read.
+ @retval FALSE There is no data waiting to be read.
+
+**/
+BOOLEAN
+EFIAPI
+SerialPortPoll (
+ VOID
+ );
#endif
|