Adaptec SCSI Controller

Hello …
I am new to the QNX and I thought after adding SCSI boot support,
I just try it.
But it fails to boot. I have an on-board Adaptec AIC 78xx U2W controller
and I looked up the supported hardware list, but found only the aic7870 and aic7880.
Is there any way to get my aic78u2 working ?
BTW instead of loading the aic8-driver the aic2 driver is loaded…