NAME

inputanalog_query - Query analog devices for filtering details.

SYNOPSIS

analogtbl_tbl or analogtbl
inputanalog_query(

devnum, axnum, rescan )

DESCRIPTION

This function allows you to query a device for analog device options and current values, either globally (no arguments, table of analogtbl returned) or from a specific device (and, optionally) axis. If rescan is set to != 0, the input subsystem will first scan for new devices.

NOTES

1: rescan is a rather costly operation and may possibly lose data for devices that doesn't identify properly.
2: analogtbl members: devid, subid (device and axis indices) upper_bound, lower_bound (value > upper and < lower will be discarded) deadzone (abs(value) within deadzone will be discarded. kernel_size, number of samples in for every sample out. mode(drop), analog processing disabled mode(pass), emit every sample mode(avg), average the kernel_size buffer mode(latest), only emit when buffer full, and keep only most recent value

EXAMPLE

function inputanalog_query0()
      local antbl = inputanalog_query();
      print(#antbl, "devices found.");
      for i = 1, #antbl do
            print("-----0);
            print(string.format("%d:%d, upper:%d, lower: %d, deadzone: %d, " ..
                  "kernel_size: %d, filter_mode: %s0, antbl[i].devid, antbl[i].subid,
                  antbl[i].upper_bound, antbl[i].lower_bound, antbl[i].deadzone,
                  antbl[i].kernel_size, antbl[i].mode));
            print("-----0);
      end
end

MISUSE