Serial Communication USB on Linux

[viceyo]

Hi, I'm new to the Linux world and I'm writing a program using C++. I need to send some instructions using a USB port to a microcontroller with a RS232-USB converter. I would like to know how can I do this in a simple way.

I just need to send some characters at a 9600 baud rate.

I'll be really thankful if anyone could help me with this.

Thanks in advance.

[wje_lf]

Do this at the command line, and all will be revealed.

man 2 open
man 2 read
man 2 write
man 2 close
man tcgetattr
man tesetattr
man cfsetispeed
man cfsetospeed
man select           # (optional)

Hope this helps.

[viceyo]

Hi, thanks for your answer.

I'll check that and tell you the results.

[viceyo]

Hi, I just tried the commands you suggested but it gives me the following answer:

No manual entry for open in section 2
See 'man 7 undocumented' for help when manual pages are not available.

No manual entry for read in section 2

No manual entry for write in section 2
See 'man 7 undocumented' for help when manual pages are not available.

Any ideas of what's happening?

Thanks

[wje_lf]

Hoo boy. It looks as though you don't have man pages installed.

Here's a quick fix: http://www.die.net/man/

If you know the section number, click on that section number. (You'll soon get a feel for that.) Otherwise, enter the function name in the box at the top.