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RC-Transmitter ppm signal to joystick input converter through the microphone jack

License: GNU General Public License v3.0

Makefile 1.88% C 64.61% C++ 33.51%

joystick rc-transmitter simulator

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smeat ryancwicks newenclave zhouyixun

txppm's Issues

Kernel module is not loaded

I am using fedora 31, after installing everything successfully i run the program with ppm2tx-gui and when i click on start button i get error:
Kernel module is not loaded or permission for /dev/tx is insufficient.
Please check README file for more detials.
Any suggestions ?

module compilation error

I'm try to follow your Readme, but just at start during module compilation I get:

uname -a
Linux meanmachine 4.14.6-1-ARCH #1 SMP PREEMPT Thu Dec 14 21:26:16 UTC 2017 x86_64 GNU/Linux

make -C /lib/modules/4.14.6-1-ARCH/build M=/path/to/txppm/module modules
make[1]: Entering directory '/usr/lib/modules/4.14.6-1-ARCH/build'
make[1]: *** No rule to make target 'Racing'.  Stop.
make[1]: Leaving directory '/usr/lib/modules/4.14.6-1-ARCH/build'
make: *** [Makefile:6: all] Error 2

Does not compile with my linux 4.11...

And perhaps newer linux with "raw_copy_from_user" but works great with r = copy_from_user (...);
despite running kernel >4.0
Compiler said implicit declaration of function, and from my limited coding experience, I assumed the raw_copy_from_user does not (no longer?) exist newer linux kernels.
Fixed by removing/commenting out lines 98, 99, 100 and 102.
This could be closed right away, I wrote it just to help others with a quick fix.

Many thanks for this code!!!
Tested with HELI-X v6.x and an Sanwa rds8000 radio. I experienced zero lag or extra jitter.

Issues installing and running on Manjaro/Arch. Probably an issue with Intel audio

I followed this tutorial: https://steamcommunity.com/app/410340/discussions/3/3211505894113757828/

First of all, I was unable to find portaudio19-dev, but there were already portaudio 1:19.6.0-6 and lib32-portaudio 1:19.6.0-4 installed. Here is a screenshot of what is available in repos.

module make was successful

[olive@olive-videoproject module]$ make
make -C /lib/modules/5.6.8-1-MANJARO/build M=/home/olive/Downloads/txppm-master/module modules
make[1]: Entering directory '/usr/lib/modules/5.6.8-1-MANJARO/build'
  CC [M]  /home/olive/Downloads/txppm-master/module/tx.o
  MODPOST 1 modules
  CC [M]  /home/olive/Downloads/txppm-master/module/tx.mod.o
  LD [M]  /home/olive/Downloads/txppm-master/module/tx.ko
make[1]: Leaving directory '/usr/lib/modules/5.6.8-1-MANJARO/build'

however, sudo make install had some issues

[olive@olive-videoproject module]$ sudo make install
[sudo] password for olive: 
make -C /lib/modules/5.6.8-1-MANJARO/build M=/home/olive/Downloads/txppm-master/module modules_install
make[1]: Entering directory '/usr/lib/modules/5.6.8-1-MANJARO/build'
  INSTALL /home/olive/Downloads/txppm-master/module/tx.ko
At main.c:160:
- SSL error:02001002:system library:fopen:No such file or directory: crypto/bio/bss_file.c:69
- SSL error:2006D080:BIO routines:BIO_new_file:no such file: crypto/bio/bss_file.c:76
sign-file: certs/signing_key.pem: No such file or directory
  DEPMOD  5.6.8-1-MANJARO
make[1]: Leaving directory '/usr/lib/modules/5.6.8-1-MANJARO/build'
depmod
install 100-txppm.rules /etc/udev/rules.d/

software make was also successful

[olive@olive-videoproject software]$ make
cc -O2  -c -oppm.o ppm.c
cc -O2  -c -osys.o sys.c
cc -O2  -c -otui.o tui.c
cc -o ppm2tx ppm.o sys.o tui.o -lpthread -lportaudio -lm -lasound -O2

and make install

[olive@olive-videoproject software]$ sudo make install
[sudo] password for olive: 
install ppm2tx /usr/local/bin/
mkdir -p /usr/local/share/txppm
install logo.png /usr/local/share/txppm/
install ../LICENSE /usr/local/share/txppm/
install icon.png /usr/share/pixmaps/
install txppm.desktop /usr/share/applications/

starting ppm2tx seems can't find compatible device

[olive@olive-videoproject software]$ ppm2tx
TXPPM - ppm2tx v.0.3.8 by Jürgen Diez
This program comes with ABSOLUTELY NO WARRANTY; for details see the LICENSE shipped with this software.
This is free software, and you are welcome to redistribute it under certain conditions; check the LICENSE file shipped with this software for details.Syntax: ppm2tx <deviceid> <mixing>

List of available devices:
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
DeviceID (0) name: HDA Intel PCH: ALC662 rev3 Analog (hw:0,0).
DeviceID (7) name: sysdefault.
DeviceID (15) name: samplerate.
DeviceID (16) name: speexrate.
DeviceID (17) name: pulse.
DeviceID (18) name: speex.
DeviceID (19) name: upmix.
DeviceID (20) name: vdownmix.
DeviceID (22) name: default.

sudo dmesg | tail does not have twoo needed lines
[ 3442.005651] input: PPM Transmitter as /devices/virtual/input/input15
[ 3442.005742] tx: device /dev/tx created (major: 222 minor: 0)

[olive@olive-videoproject ~]$ sudo dmesg | tail
[11340.173639] audit: type=1106 audit(1589294414.221:157): pid=40134 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:session_close grantors=pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11340.173641] audit: type=1104 audit(1589294414.221:158): pid=40134 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:setcred grantors=pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11377.435311] audit: type=1101 audit(1589294451.485:159): pid=40193 uid=1000 auid=1000 ses=1 subj==unconfined msg='op=PAM:accounting grantors=pam_unix,pam_permit,pam_time acct="olive" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11377.435522] audit: type=1110 audit(1589294451.485:160): pid=40193 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:setcred grantors=pam_unix,pam_permit,pam_env acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11377.437655] audit: type=1105 audit(1589294451.488:161): pid=40193 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:session_open grantors=pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11377.444345] audit: type=1106 audit(1589294451.495:162): pid=40193 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:session_close grantors=pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11377.444413] audit: type=1104 audit(1589294451.495:163): pid=40193 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:setcred grantors=pam_unix,pam_permit,pam_env acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11445.071706] audit: type=1101 audit(1589294519.119:164): pid=40291 uid=1000 auid=1000 ses=1 subj==unconfined msg='op=PAM:accounting grantors=pam_unix,pam_permit,pam_time acct="olive" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11445.071870] audit: type=1110 audit(1589294519.119:165): pid=40291 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:setcred grantors=pam_unix,pam_permit,pam_env acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'
[11445.074327] audit: type=1105 audit(1589294519.122:166): pid=40291 uid=0 auid=1000 ses=1 subj==unconfined msg='op=PAM:session_open grantors=pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/2 res=success'

install: cannot stat ‘ppm2tx’: No such file or directory

Trying to compile txppm on a Mint machine. Machine is fully up to date. Getting the following error.

install ppm2tx /usr/local/bin/ install: cannot stat ‘ppm2tx’: No such file or directory make: *** [install] Error 1

Any help would be appreciated.

Compilation errors

Hi, and thanks for pushing support of this program!

However, I'm getting a bunch of compilation errors. The first one I think I have a possible solution to.
"ISO C90 forbids mixed declarations and code", found a fix here: https://stackoverflow.com/questions/13291353/iso-c90-forbids-mixed-declarations-and-code-in-c
On my system at least the compiler was defaulting to some outdated standard (c89).
BTW, I'm running Linux Mint 18.2 64bit on an Intel Core duo p9700.

I added the following to the Makefile, and the ISO C90 error disapeared:
CC = gcc
ccflags-y = -Wall -std=c99

After this I run into some issues with the included kernel.h, which is far beyond my scope of understanding :) Error output from trying to "make" in the /module folder is attached.
kernel_make_results.txt

Data are incompatibile length

Hi, I tried ppm2tx-gui with my Flysky i6 tx. Connected to my linux computer via mini-DIN to 3.5mm jack self made reduction and ran ppm2tx-gui. The channels were randomly hopping and when I quit program i saw this text:


ERROR -> Data are incompatibile length !

Does anyone have an idea what might be wrong?

ERROR -> /dev/tx device is missing !

I built this per the readme but I am getting this error. New to linux so any help would be appriciated.

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