netgraph cpcsinit + vcc parrameters

[donatas]

hello,
I use netgraph for :

hatm: <-------------> atmllc <--------->em

also I  use vcc chanels:

ngctl msg hatm0: cpcsinit {name="sig1" aal=5 vci=55}

I need to set some more vcc parameters ( ubr, pixel-rate, burst-size)

it was possible to do using atmconfig
( atmconfig natm add 1.1.1.1 hatm0 0 55 LLC/SNAP vbr 1331 1330 50)

but how to realize those settings using cpcsinit ? it sets some default values

any ideas?

thanx


ps: google seems unable to help in this case