Re: Re: serial connexion between 2 machines failed

[abdelkader belahcene <abelahcene@gmail.com>]

Thanks a lot for the hint,

the difference is there :

on the machine where the programs ran  i got the ouput:
 # dmesg |grep ttyS
[    0.331367] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[    0.640601] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[    0.720856] 00:0d: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[    0.752633] 00:0e: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[    0.784232] 0000:00:03.3: ttyS4 at I/O 0x1c90 (irq = 17) is a 16550A

While  on the machine where they didn't ,
nothing is displayed  , I mean
# dmesg |grep ttyS
#

So  How to activate the ports !!!   thanks a lot
regards
bela