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  • bladekel
  • bladekel
20 Jun 2025 14:15 - 20 Jun 2025 14:19

(SOLVED) hal_gpio: Operation not permitted fault cannot be solved

Category: HAL

Hello to all.
I'm using Linuxcnc 2.9.4 on rpi5 debian bookworm that is installed from linuxcnc rpi5 image.
I have a problem on running my setup.
I tried many things like adding gpio to my user, creating a file 90-gpio-access that is mentioned on hal_gpio manual (linuxcnc.org/docs/devel/html/drivers/hal_gpio.html)

but I failed.

Here is my fault information;
Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.4
Machine configuration directory is '/home/cnc/linuxcnc/configs/my-mill'
Machine configuration file is 'my-mill.ini'
INIFILE=/home/cnc/linuxcnc/configs/my-mill/my-mill.ini
VERSION=1.1
PARAMETER_FILE=linuxcnc.var
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=
DISPLAY=axis
COORDINATES=X Y Z A
KINEMATICS=trivkins coordinates=XYZA
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
Found file(REL): ./my-mill.hal
Shutting down and cleaning up LinuxCNC...
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Note: Using POSIX realtime
Failed to register output pin collection
hal_gpio: rtapi_app_main: Operation not permitted (-1)
./my-mill.hal:4: waitpid failed /usr/bin/rtapi_app hal_gpio
./my-mill.hal:4: /usr/bin/rtapi_app exited without becoming ready
./my-mill.hal:4: insmod for hal_gpio failed, returned -1
2307
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

my groups are;
cnc@raspberrypi:~$ groups
cnc tty disk dialout sudo audio video plugdev users input render netdev i2c bluetooth gpio spi
  • JAMSys
  • JAMSys
17 Jun 2025 11:01

Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5

Category: Installing LinuxCNC

Thanks a lot. This is the info I was looking for.
  • unknown
  • unknown
17 Jun 2025 10:41

Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5

Category: Installing LinuxCNC

Hi,
The Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5 are
special OS. The menu-config configuration does not have the option for auto login.
 

Rod's the one that has put them together, apart from the RT kernel & the addition of the Linuxcnc packages it's just Debian. Nothing special about the actual OS.
  • rodw
  • rodw's Avatar
17 Jun 2025 10:19

Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5

Category: Installing LinuxCNC

Hi,
The Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5 are
special OS. The menu-config configuration does not have the option for auto login.

Nothing to do with menu-config. Its all Linux
gnipsel.com/linuxcnc/debian-11-fix.html
  • JAMSys
  • JAMSys
17 Jun 2025 05:38

Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5

Category: Installing LinuxCNC

Hi,
The Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5 are
special OS. The menu-config configuration does not have the option for auto login.
  • rodw
  • rodw's Avatar
16 Jun 2025 12:05

Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5

Category: Installing LinuxCNC

You should be able to set up auto login the same way it is done with an x86 machine as its the OS you are logging into
  • JAMSys
  • JAMSys
16 Jun 2025 08:50

Linuxcnc 2.9.2 and 2.93 images for Raspberry Pi 4b & 5

Category: Installing LinuxCNC

Hi,

Is it possible to create an auto-login for the raspberryPi in order to create a keyboard less system with gmoccapy?
  • billykid
  • billykid's Avatar
15 Jun 2025 14:08 - 15 Jun 2025 14:14

Linuxcnc & the Raspberry Pi (4 & 5) Official Images Only!!!

Category: Installing LinuxCNC

so it's perfect! if I think how much time I wasted with a nuc i3 to improve the latency without succeeding... I need it to tune up some drives that I recovered 2 years ago, now I also have the servos. if anyone knows these maybe they can give me some advice on how to use them in the best way.
drive Sanmotion rs2aa03a0al0 motor r2aa06040fxp
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