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Re: Lost support for baud rate of 230400 after minor Cygwin upgrade


David le Comte wrote:
Brian Ford wrote:
On Fri, 16 Feb 2007, David le Comte wrote:

Note that using stty -F /dev/comX where X is the "Comm port number"
still works, ie it can still set the baud rate to 230400 (or even
250000).

Sorry, but note also that if you are going to use Posix style termio calls, you need to use the Posix device name (/dev/ttySx).

Are you sure Brian? I am running Cygwin on WinXP, and using stty on /dev/ttyX fails,
whereas on /dev/comX it works (where X is valid of course).


Similarly open("/dev/ttyX",O_RDWR) returns -1, but returns a valid file ID with open("/dev/comX",O_RDWR).

My understanding is, that on a PC, psuedo-device files of the form "/dev/ttyX" do not exist?


What gave you that idea?

$ ls /dev/tty1
/dev/tty1

But Brian suggested using /dev/ttySx (i.e. '/dev/ttyS0').  These
are supported.

$ ls /dev/ttyS0
/dev/ttyS0

See <http://cygwin.com/cygwin-ug-net/using-specialnames.html>

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