mb2hal in LinuxCNC 2.9 No function Code 01

Hi.
where is the code fnct_01_read_coils gone?
And why was it dropped?
What should I use instead?

It's in fact the opposite:

Read coils is not supported in version 2.8 according to this: linuxcnc.org/docs/2.8/html/drivers/mb2hal.html
Read coils is supported in version 2.9 according to this: linuxcnc.org/docs/2.9/html/drivers/mb2hal.html

Did a fresh Debian 12 install, and then LinuxCNC.
updated it to the last version.
copied my machine setup from LinuxCNC 2.8.1 to it.
mb2hal throws error "fnct_01_read_coils" out of range..
 

Maybe you could share your config.

 This is my INI.

When I activate the last transaction_05 it throws the error.

All the other transactions work, after I changed some pin names, because they have changed also a little in 2.9

I pulled the repo from github.
In this src, all the function codes are there.
How can I recompile and install this module?

github.com/LinuxCNC/linuxcnc/tree/master...al/user_comps/mb2hal


EDIT: I tried with halcompile...but no luck

oj@debian12:~$ halcompile --compile --userspace --extra-compile-args="-I/usr/include/modbus" /home/oj/linuxcnc-dev/src/hal/user_comps/mb2hal/mb2hal.c
gcc -I/home/oj/linuxcnc-dev/src/hal/user_comps/mb2hal -I/usr/include -I/usr/include/linuxcnc -URTAPI -U__MODULE__ -DULAPI -Os -I/usr/include/modbus -o mb2hal /tmp/tmpixtekcwo/mb2hal.c -Wl,-rpath,/lib -L/lib -llinuxcnchal
/usr/bin/ld: /tmp/ccaTGM4F.o: in function `get_tx_connection':
mb2hal.c:(.text+0x132): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x146): undefined reference to `modbus_connect'
/usr/bin/ld: mb2hal.c:(.text+0x15c): undefined reference to `modbus_set_socket'
/usr/bin/ld: mb2hal.c:(.text+0x185): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x1b8): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x1d1): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x203): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x247): undefined reference to `modbus_set_slave'
/usr/bin/ld: mb2hal.c:(.text+0x2a7): undefined reference to `modbus_set_debug'
/usr/bin/ld: mb2hal.c:(.text+0x2c5): undefined reference to `modbus_set_response_timeout'
/usr/bin/ld: mb2hal.c:(.text+0x2e3): undefined reference to `modbus_set_byte_timeout'
/usr/bin/ld: /tmp/ccaTGM4F.o: in function `link_loop_and_logic':
mb2hal.c:(.text+0x5b5): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x615): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x65a): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x6a9): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x707): undefined reference to `modbus_get_socket'
/usr/bin/ld: /tmp/ccaTGM4F.o:mb2hal.c:(.text+0x760): more undefined references to `modbus_get_socket' follow
/usr/bin/ld: /tmp/ccaTGM4F.o: in function `link_loop_and_logic':
mb2hal.c:(.text+0x801): undefined reference to `fnct_01_read_coils'
/usr/bin/ld: mb2hal.c:(.text+0x80b): undefined reference to `fnct_02_read_discrete_inputs'
/usr/bin/ld: mb2hal.c:(.text+0x815): undefined reference to `fnct_03_read_holding_registers'
/usr/bin/ld: mb2hal.c:(.text+0x81f): undefined reference to `fnct_04_read_input_registers'
/usr/bin/ld: mb2hal.c:(.text+0x829): undefined reference to `fnct_05_write_single_coil'
/usr/bin/ld: mb2hal.c:(.text+0x833): undefined reference to `fnct_06_write_single_register'
/usr/bin/ld: mb2hal.c:(.text+0x83a): undefined reference to `fnct_15_write_multiple_coils'
/usr/bin/ld: mb2hal.c:(.text+0x841): undefined reference to `fnct_16_write_multiple_registers'
/usr/bin/ld: mb2hal.c:(.text+0x865): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x8d8): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x918): undefined reference to `modbus_close'
/usr/bin/ld: mb2hal.c:(.text+0x95a): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x9af): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0x9f3): undefined reference to `modbus_flush'
/usr/bin/ld: mb2hal.c:(.text+0xa4a): undefined reference to `modbus_get_socket'
/usr/bin/ld: mb2hal.c:(.text+0xabc): undefined reference to `modbus_get_socket'
/usr/bin/ld: /tmp/ccaTGM4F.o: in function `quit_cleanup':
mb2hal.c:(.text+0xb88): undefined reference to `modbus_close'
/usr/bin/ld: mb2hal.c:(.text+0xb9c): undefined reference to `modbus_free'
/usr/bin/ld: /tmp/ccaTGM4F.o: in function `main':
mb2hal.c:(.text.startup+0x12): undefined reference to `parse_main_args'
/usr/bin/ld: mb2hal.c:(.text.startup+0xab): undefined reference to `parse_ini_file'
/usr/bin/ld: mb2hal.c:(.text.startup+0x110): undefined reference to `init_mb_links'
/usr/bin/ld: mb2hal.c:(.text.startup+0x16e): undefined reference to `init_mb_tx'
/usr/bin/ld: mb2hal.c:(.text.startup+0x21a): undefined reference to `create_HAL_pins'
collect2: error: ld returned 1 exit status
make: *** [Makefile:2: mb2hal] Fehler 1