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[PATCH] 230.4Kbps support for serial port


Hi,
Attached is a patch that enables cygwin to talk at 230400 bps on serial ports that support the higher rate. It also does the necessary error-checking to confirm whether or not a given port is capable of extended bitrates. I added B230400 (for Posix) and CBR_230400 (for Win32) definitions to the appropriate header files (termios.h and winbase.h, respectively). I've been testing for a couple days now and it appears to work as designed. (We use a lot of extended bitrate devices at work, mostly with Win32 code - so this simply brings the paradigm across to the posix side of the house.)

Question: Upon failure (ie. trying to configure a non-230.4K capable port to talk 230.4K), I simply return -1... I'm not sure whether POSIX would set errno = EINVAL or not... either way is fine.

Let me know if you have any questions, otherwise it sure would be nice to roll this in if possible :) Thanks,

-Troy


Changelog entry:

2003-01-06 Troy Curtiss <troyc@usa.net>

* fhandler_serial.cc (fhandler_serial::tcsetattr):
Add support and capability checking for B230400 bitrate
* fhandler_serial.cc (fhandler_serial::tcgetattr):
Add support for B230400 bitrate
* /cvs/src/src/winsup/w32api/include/winbase.h:
Add CBR_230400 definition for Win32 support of 230.4Kbps
* /cvs/src/src/winsup/cygwin/include/sys/termios.h:
Add B230400 definition for Posix support of 230.4Kbps

Attachment: cygwin_serial_230k4_support.patch
Description: Binary data


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