El mar, 15 oct 2024 a las 7:53, RVP (<r...@sdf.org>) escribió:
>
> On Mon, 14 Oct 2024, Ramiro Aceves wrote:
>
> > netbsd-raspa4$ { sleep 1; stty -f /dev/ttyU0 ... ; } & cat /dev/ttyU0
> > stty: /dev/ttyU0: Resource temporarily unavailable
> > ^C
> >
>
> That `...' == fill-in-the-blanks :)
>
> > netbsd-raspa4$ { sleep 1; stty -f /dev/ttyU0 9600 raw clocal cread
> > -crtscts; } & cat /dev/ttyU0
> > stty: /dev/ttyU0: Resource temporarily unavailable
> > ^C
> >
>
> Can you try the dial-out device?
>
> { sleep 1; stty -f /dev/dtyU0 9600 raw clocal cread -crtscts; } & cat
> /dev/dtyU0
>
> kre@'s should also work with this, I think.
Hello RVP, I really appreciate your effort in finding the truth here
(also the others).
netbsd-raspa4$ { sleep 1; stty -f /dev/dtyU0 9600 raw clocal cread
-crtscts; } & cat /dev/dtyU0
netbsd-raspa4$ nothing.......
netbsd-raspa4$ (stty 9600 raw; cat) </dev/dtyU0
netbsd-raspa4$ nothing...
cu command seems to work also with /dev/dtyU0 device:
netbsd-raspa4$ cu -l /dev/dtyU0 -s 9066 |hexdump -C > message
~~. (to stop cu command)
netbsd-raspa4$ cat message
00000000 43 6f 6e 6e 65 63 74 65 64 0d 0a 40 40 45 e1 8a |Connected..@@E..|
00000010 8d 87 e8 0c 8c 81 80 00 00 00 08 b1 53 8b ff 35 |............S..5|
00000020 fb a5 00 01 3d 1a 00 00 00 00 00 00 80 80 80 80 |....=...........|
00000030 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 |................|
*
00000050 80 80 80 ca d4 8d 0a 40 40 45 61 0a 0d 07 e8 0c |.......@@Ea.....|
00000060 0c 03 00 00 00 00 08 b1 d3 8b ff b5 fb a5 80 81 |................|
00000070 bd 9a 80 80 80 80 80 80 80 80 80 80 80 80 80 80 |................|
00000080 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 |................|
00000090 80 00 00 00 00 80 80 80 80 80 80 80 80 00 00 ca |................|
000000a0 56 0d 0a 40 40 c5 e1 8a 8d 87 e8 8c 8c 85 00 00 |V..@@...........|
000000b0 00 00 08 b1 53 8b ff 35 fb a5 00 01 3d 1a 00 00 |....S..5....=...|
000000c0 00 00 00 00 00 00 00 00 00 00 00 80 80 80 80 80 |................|
000000d0 80 80 80 80 80 80 80 80 80 00 00 00 00 00 80 00 |................|
000000e0 00 00 00 80 80 00 80 80 00 80 00 4a 50 0d 0a 40 |...........JP..@|
000000f0 40 45 61 0a 0d 07 e8 0c 0c 07 00 00 00 00 08 b1 |@Ea.............|
00000100 53 8b ff 35 fb a5 80 81 bd 9a 80 80 80 80 80 00 |S..5............|
00000110 80 80 80 80 80 80 80 00 80 00 00 00 00 00 00 00 |................|
00000120 00 00 00 00 00 00 00 00 00 00 00 80 00 80 00 00 |................|
00000130 00 00 00 00 00 00 00 4a d2 0d 0a 7e 0d 0a 5b 45 |.......J...~..[E|
00000140 4f 54 5d 0d 0a |OT]..|
00000145
Thanks.
>
> After reading tty(4), I see that there's a difference between ttyU0 and dtyU0,
> (as a Linux guy, all this is a bit obscure...), and maybe we should've been
> using the dial-out device all along.
>
> HTH,
>
> -RVP
