[jira] Closed: (DIRMINA-740) Serial Hardware Flow Control is not working

["boB Gage (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DIRMINA-740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

boB Gage closed DIRMINA-740.
----------------------------


Verified.  Julien's fix has fixed the Linux hardware flow control symptom completely.

THANKS!!

> Serial Hardware Flow Control is not working
> -------------------------------------------
>
>                 Key: DIRMINA-740
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-740
>             Project: MINA
>          Issue Type: Bug
>    Affects Versions: 2.0.0-M6
>         Environment: Very different behaviours seen on Linux and Windows environments.   Issues may be related, or may just both coincidentally happen on hardware flow controlled ports.
>            Reporter: boB Gage
>            Assignee: Julien Vermillard
>
> Linux machines:
> Attempting to connect to a device using hardware flow control (RTS/CTS) fails to accumulate any incoming data regardless of the FlowControl constant sent to the SerialAddress constructor.    
> External program (old C++ version of same application) confirms device does respond to requests after port opened as 19200 8E1 with RTS/CTS flow control -- Mina-based Java app fails to get any incoming data at all.  [ This may be because it has not sent the data it thinks it has, as the far end will only respond, not initiate. ]
> Windows machines:
> Attempting to connect to a port using hardware flow control disables the port for subsequent connections during same execution.    [ IOW, once a port is opened with hardware flow control turned on, no non-flow control protocol is possible on that port. ]     This is especially bad if the hardware-flow-requiring device driver is attempted on a port connected to a device not matching the driver (as the proper driver will not be able to open the port ).
> This may or may not be two symptoms of the same root cause.

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