Create a symlink to a serial port

Asked Oct 14 '13 at 10:11

Active Oct 14 '13 at 10:11

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I have a software that outputs some info to a text file. Now I want to redirect that output to a serial port. The file name is hard coded in the software. So I decided to create a symlink to the serial port. The symlink will have the same name as the file. I tried:

mklink file.txt COM1

The symlink was successfuly created but whenever I try to write something to that file.txt, a COM1 file is created in the same directory. So all the output goes to that file instead of the serial port.

Is it possible to create a symlink to a serial port in Windows?

asked Oct 14 '13 at 10:11

smsrecv

1

Did you try the UNC path for the port? – Ignacio Vazquez-Abrams Oct 14 '13 at 10:24
I wonder if you need to specify it like `"COM1:9600,N,8,1"`? – Falcon Momot Oct 14 '13 at 10:45
@IgnacioVazquez-Abrams I tried `\\.\COM1`. Such a link doesn't work. System error 4392 when openning the file – smsrecv Oct 14 '13 at 11:58
@FalconMomot It still creates a COM1 file in the same directory – smsrecv Oct 14 '13 at 12:00
I think that `\\.\COM1` needs a colon after it in order to work: so it should be `\\.\COM1:`, but I don't know if that will solve your problem, because I don't know if it will let you make a symlink, even with that. – Moshe Katz Oct 17 '13 at 23:02

Create a symlink to a serial port

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