[Boost-bugs] [Boost C++ Libraries] #12295: Boost Asio Serial Port does not work with Exar (Baudrate zero)

Subject: [Boost-bugs] [Boost C++ Libraries] #12295: Boost Asio Serial Port does not work with Exar (Baudrate zero)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-06-22 18:47:15

#12295: Boost Asio Serial Port does not work with Exar (Baudrate zero)
-------------------------------------------------+-------------------------
 Reporter:  Andreas Schmitz                      |      Owner:
  <andreas.schmitz13@…>                          |  chris_kohlhoff
     Type:  Bugs                                 |     Status:  new
Milestone:  To Be Determined                     |  Component:  asio
  Version:  Boost 1.61.0                         |   Severity:  Problem
 Keywords:  serial port exar windows baudrate    |
  zero                                           |
-------------------------------------------------+-------------------------
 Calling boost::asio::serial_port.open("COM4") returns a error under
 windows.
 We use a Exar XR22804 using the latest official drivers for Windows. The
 problem is located in boost::asio::win_iocp_serial_port_service where the
 windows driver returns dcb.Baudrate=0.
 After that it tries to set new settings with SetCommState and it fails if
 dcb.Baudrate is 0. A solution would be to preset the baudrate if 0 or even
 better to read a user parameter with the wanted baudrate as it is done in
 some other frameworks.

 Someone else has sent the same bug to the people of the qt-framework, and
 they solved it:
 https://bugreports.qt.io/browse/QTBUG-46993

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12295>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.