Keybinding help

I have been struggling to find the info for the past week I am tired of reading posts and getting nowhere so i am asking for help

I would like to know how to add a key either in axis and gscreen or gmoccapy
i am making a arduino leonardo pendant to send keystrokes it works fine but i would like added functionality ie
in axis i would like to be able to bind keys to for feed override not jog feed
in gscreen or gmoccapy feed override and select jogmode

I really need simple examples because i am still struggling with linux i can reverse engineer pretty good if i have something to work with but i have not been able to find anything that explains what i want to know

here is a sample from pico USC so maybe i am making sense (ignore that i am asking about a limit switch i would just like to know how to link to a keystroke)


# connect limit/home switch outputs to motion controller
newsig Xminlim bit
newsig Xmaxlim bit
newsig Xhome bit
linksp Xminlim <= ppmc.0.din.01.in (its an example but how would i link a signal like this to a KEYSTROKE)
linksp Xminlim => axis.0.neg-lim-sw-in
linksp Xmaxlim <= ppmc.0.din.02.in
linksp Xmaxlim => axis.0.pos-lim-sw-in
linksp Xhome <= ppmc.0.din.00.in
linksp Xhome => axis.0.home-sw-in


Matthew

Ty John
i have read this and finally figured out a bit of it but it is still very confusing

lets say i want ti remove the key-binds for all axis and just use the - and= for jogging that's easy
but if i want to bind feed override to [ and ] well i cant find the list of commands so i know what to add
everything i have tried i get a Tcl error when i start linuxcnc

well i got everything working except for one thing now, that is the feed override in axis there are keybinds for Jog speed and angular jog speed in usr/bin/axis under help1 ( , .) jog (<>)ang jog however i cannot find anyway to change these I thought if i could then i could add the code needed to bind the feed override the same as they are
for a little more clarification when i am not using my pendant for jogging i want to turn the wheel to control the feed override
I want the pendant to work as a keyboard not as a hal component that is hard wired
any suggestions?
note(1) I also checked the file usr/share/axis/axis.tcl and didnt find the jog slider keybinds

While I understand what you are saying with the hal pins that's not the way I wanna do it lol
There are already keybinds for what I want except feed override so it shouldn't be a problem to add two keys to control that from my jog wheel I just need to know where the code is that controls the jog feed slider so I can implement the feed override keybinds

Yes but I want to control it incrementally like the other feed overrides at 1% increments

EDIT*
in filesystem/usr/share/axis/tcl i found axis.tcl

this is for Angular jog

frame ${pane_top}.ajogspeed
label ${pane_top}.ajogspeed.l0 -text [_ "Jog Speed:"]
label ${pane_top}.ajogspeed.l1
scale ${pane_top}.ajogspeed.s -bigincrement 0 -from .06 -to 1 -resolution .020 -showvalue 0 -variable ajog_slider_val -command update_ajog_slider_vel -orient h -takefocus 0
label ${pane_top}.ajogspeed.l -textv jog_aspeed -width 6 -anchor e
pack ${pane_top}.ajogspeed.l0 -side left
pack ${pane_top}.ajogspeed.l -side left
pack ${pane_top}.ajogspeed.l1 -side left
pack ${pane_top}.ajogspeed.s -side right
bind . <less> [regsub %W [bind Scale <Left>] ${pane_top}.ajogspeed.s] #this line
bind . <greater> [regsub %W [bind Scale <Right>] ${pane_top}.ajogspeed.s] #and this line

I took those two lines and added them to the feed override below changed the keybinds and the scale name problem solved

i will post the details later once i get the arduino code wrote and all tested untill then i hope this helps someone