qw@CNC:~$ halcmd show | grep gladevcp
     9  User  gladevcp                                         3771 ready
     9  bit   IN          FALSE  gladevcp.button-box-active <== machine-is-on
     9  bit   OUT         FALSE  gladevcp.hal_button1
     9  bit   IN           TRUE  gladevcp.spindle-at-speed-led <== spindle-at-speed
     9  float IN              0  gladevcp.spindle-speed <== spindle-vel-cmd-rpm-abs
     9  bit   OUT         FALSE  gladevcp.zero-a ==> MDI-zeroa
     9  bit   IN          FALSE  gladevcp.zero-a-active <== a-is-homed
     9  bit   OUT         FALSE  gladevcp.zero-x ==> MDI-zerox
     9  bit   IN          FALSE  gladevcp.zero-x-active <== x-is-homed
     9  bit   OUT         FALSE  gladevcp.zero-y ==> MDI-zeroy
     9  bit   IN          FALSE  gladevcp.zero-y-active <== y-is-homed
     9  bit   OUT         FALSE  gladevcp.zero-z ==> MDI-zeroz
     9  bit   IN          FALSE  gladevcp.zero-z-active <== z-is-homed
                         <== gladevcp.zero-a
                         <== gladevcp.zero-x
                         <== gladevcp.zero-y
                         <== gladevcp.zero-z
                         ==> gladevcp.zero-a-active
                         ==> gladevcp.button-box-active
                         ==> gladevcp.spindle-at-speed-led
                         ==> gladevcp.spindle-speed
                         ==> gladevcp.zero-x-active
                         ==> gladevcp.zero-y-active
                         ==> gladevcp.zero-z-active

