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| author | Denis Shienkov <denis.shienkov@gmail.com> | 2015-07-02 17:51:03 +0300 |
|---|---|---|
| committer | Denis Shienkov <denis.shienkov@gmail.com> | 2015-07-08 07:29:26 +0000 |
| commit | 1eaa42c99d8442a40718b8560903b0bfeb401a0e (patch) | |
| tree | f93c691ec4e869faa21cd902802fcb0e1f7fdde6 | |
| parent | 35aa1413c8c4878570786897a0df936fb36b4a17 (diff) | |
| download | qtserialport-1eaa42c99d8442a40718b8560903b0bfeb401a0e.tar.gz | |
Fix opening of Exar VCP on Windows
The method QSPP::initialize() calls the GetCommState() function,
which returns with the DCB.BaudRate field being 0. The subsequent
call of SetCommState() would fail because of that.
So, we need set DCB.BaudRate to any non-zero value (for example the input
baud rate, which defaults to 9600) before calling the SetCommState()
function.
Task-number: QTBUG-46993
Change-Id: I809246b13899733f9e0bd12b3667b23c0e43b00b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
| -rw-r--r-- | src/serialport/qserialport_win.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/serialport/qserialport_win.cpp b/src/serialport/qserialport_win.cpp index 57b7096..761a26e 100644 --- a/src/serialport/qserialport_win.cpp +++ b/src/serialport/qserialport_win.cpp @@ -671,6 +671,8 @@ inline bool QSerialPortPrivate::initialize() if (currentDcb.fDtrControl == DTR_CONTROL_HANDSHAKE) currentDcb.fDtrControl = DTR_CONTROL_DISABLE; + currentDcb.BaudRate = inputBaudRate; + if (!updateDcb()) return false; |