fedma version 26043000
NOTE: for RM5 firmware only.
Set and/or read the DMA controller index (or mask) for (ToHost) e-links,
a setting per e-path (i.e. e-link).
Without a DMA index setting provided the current setting(s)
of the selected e-link(s) is (are) displayed.

Usage: fedma -h|V -d<devnr> -e<elink>
             -G<lnk> -g<group> -p<path> [<dma-index>]
  -h         : Show this help text.
  -V         : Show version.
  -A         : Add DMA index to existing setting
               (for DMA-mask type firmware only).
  -d <devnr> : FLX-device to use (default: 0).
  -e <elink> : E-link number (hex) or use -G/g/p options.
  -G <lnk>   : Link number (default: all links).
  -g <group> : Group number (default: all groups).
  -p <path>  : E-path number (default: all paths).
  <dma-index>: DMA index to set for the selected E-link(s)
               (if adding index: use option -A)
