Hi, I thought I might take a whack at fixing the 2.6 serial driver for my 8600. At the top of pmac_zilog.c (2.6.26) there is a todo for DMA. A quick glance at macserial.c (2.4.31) suggests it has dbdma support for receive. Anyone know of any pitfalls for adding dbdma support for pmac_zilog.c? kevin