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The building build.py script won't compile the project on Ubuntu.

ifdef _MSC_VER

return ptt_ptr(new ptt_parallel_windows());

endif

Code above produce error while compiling:
extmodem-master\src\ptt.cpp(71): error C2061: syntax error : identifier 'ptt_parallel_windows'

Error: expected a type specifier

Any suggestion?

Can support for creating a pseudo terminal be added for KISS? That way the kernel's MKISS module can be used and you get a real kernel network interface.

This should be pretty minimal work of adding a call to openpty(3) and reading and writing to the master side, rather than to a TCP socket.

I tested out the kernel's MKISS module and extmodem by using socat to wrap the tcp socket as a pty and it seemed to work.

Had problems compiling on Rpi2.

In build.py -> CFLAGS -> "-std=c++11" should be "-std=c++0x".

Is possible to compatible with meshtastic and no licence mode?
or add retticulum network

Sending a packet may not be synchronized with the PTT.

Hi,

I'm working on a APRS-related project on Raspberry Pi powered by Archlinux ARM - extmodem is much more better at decoding real APRS packets recorded from radio than soundmodem while using cheap, chinese USB cards, but I have other kind of problems:

After running Xastir, logs from debug instance, executed in this way:
/usr/bin/extmodem --audio-backend alsa --agwpe-tcp-port 8000 --kiss-tcp-port 6666 --ptt-mode null -s 48000 --in-chan 1 --t-chan 2 --debug --alsa-device "plughw:0,0"

Results in:

AGWPE New TCP connection, 1 total.
AGWPE new data 108
AGWPE new frame kind: R
AGWPE new frame kind: G
AGWPE new frame kind: k
AGWPE new data 92
AGWPE new frame kind: V
AGWPE UNHANDLED PACKET type: V

I configured Xastir to use AGWPE without success - every time I click "Transmit now!" or trying to send any message, I receive that error in log.

Have you discovered any successful way to connect extmodem to Xastir?

If it might be useful - aplay -L output:

null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=Device
    USB PnP Audio Device, USB Audio
    Default Audio Device
sysdefault:CARD=Device
    USB PnP Audio Device, USB Audio
    Default Audio Device
front:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    Front speakers
surround21:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Device,DEV=0
    USB PnP Audio Device, USB Audio
    IEC958 (S/PDIF) Digital Audio Output

ALSA is broken, does not reproduce packets.

Create a port for OpenWRT

Hi again,

I have another question: In #11 there's specified my environment - I noticed that while Mic in Playback(I'm speaking about alsamixer) is muted, extmodem isn't able to decode either DTMF tones or APRS packets, so in case when RPi mic & speaker output are connected to speaker & mic in my PC, I can hear all sounds back, and I don't know how to solve it - I'm sure that problem is related to USB card at all(on soundblaster even soundmodem worked correctly), but there's maybe some solution - do you have any ideas? APRS is simplex at all, but I don't know how modules like DRA818V will behave.