diff options
| author | Denis Shienkov <denis.shienkov@gmail.com> | 2015-07-02 17:51:03 +0300 |
|---|---|---|
| committer | Denis Shienkov <denis.shienkov@gmail.com> | 2015-07-08 13:25:40 +0000 |
| commit | fbe5c46ce311681b319f9cf277379958f3e10e93 (patch) | |
| tree | d94f9ef5cc0fab2e844513325516b53c264cf1ec | |
| parent | 3cd8cc12d9567288de77c0a5f44fe6c910b34af2 (diff) | |
| download | qtserialport-fbe5c46ce311681b319f9cf277379958f3e10e93.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.
(cherry-picked from 1eaa42c99d8442a40718b8560903b0bfeb401a0e)
Task-number: QTBUG-46993
Change-Id: I809246b13899733f9e0bd12b3667b23c0e43b00b
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 d189ba3..73fedc0 100644 --- a/src/serialport/qserialport_win.cpp +++ b/src/serialport/qserialport_win.cpp @@ -733,6 +733,8 @@ inline bool QSerialPortPrivate::initialize() if (currentDcb.fDtrControl == DTR_CONTROL_HANDSHAKE) currentDcb.fDtrControl = DTR_CONTROL_DISABLE; + currentDcb.BaudRate = inputBaudRate; + if (!updateDcb()) return false; |