DragonFly On-Line Manual Pages  FWOHCI(4)             DragonFly
Kernel Interfaces Manual             FWOHCI(4)   fwohci -- OHCI
firewire chipset device driver   kldload firewire or device
firewire   The fwohci driver provides support for PCI/CardBus
firewire interface cards. The driver supports the following IEEE
1394 OHCI chipsets. NEC uPD72861 Texas Instruments
TSB12LV{22,23,26}, TSB43{AA22,AB22/A}, PCI44{10A,50} Sony CX3022
VIA VT6306 Ricoh R5C552   firewire(4), fwe(4), sbp(4),
fwcontrol(8), kldload(8)   The fwohci device driver first
appeared in FreeBSD 5.0.     The driver allows physical access
from any nodes on the bus by default. This means that any
devices on the bus can read and modify any memory space which
can be accessed by an IEEE 1394 OHCI chip. It is allowed mostly
for sbp(4) devices. This should be changed to allow it only for
specific devices. Anyway, FireWire is a bus and not expected to
be con- nected with un-trustable devices because a node can
monitor all the traf- fic. DragonFly 3.7 April 10, 2000 Dr