FreeBSD manual
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FWOHCI(4) FreeBSD Kernel Interfaces Manual FWOHCI(4)
NAME
fwohci - OHCI FireWire chipset device driver
SYNOPSIS
To compile this driver into the kernel, place the following line in your
kernel configuration file:
device firewire
Alternatively, to load the driver as a module at boot time, place the
following line in loader.conf(5):
firewire_load="YES"
To disable physical access (see BUGS section for detail), put the
following line in loader.conf(5):
hw.firewire.phydma_enable=0
HARDWARE
The fwohci driver provides support for PCI/CardBus FireWire interface
cards. The driver supports the following IEEE 1394 OHCI chipsets:
o Adaptec AHA-894x/AIC-5800
o Apple Pangea
o Apple UniNorth
o Intel 82372FB
o IOGEAR GUF320
o Lucent / Agere FW322/323
o NEC uPD72861
o NEC uPD72870
o NEC uPD72871/2
o NEC uPD72873
o NEC uPD72874
o National Semiconductor CS4210
o Ricoh R5C551
o Ricoh R5C552
o Sony CX3022
o Sony i.LINK (CXD3222)
o Texas Instruments PCI4410A
o Texas Instruments PCI4450
o Texas Instruments PCI4451
o Texas Instruments TSB12LV22
o Texas Instruments TSB12LV23
o Texas Instruments TSB12LV26
o Texas Instruments TSB43AA22
o Texas Instruments TSB43AB21/A/AI/A-EP
o Texas Instruments TSB43AB22/A
o Texas Instruments TSB43AB23
o Texas Instruments TSB82AA2
o VIA Fire II (VT6306)
SEE ALSO
firewire(4), fwe(4), fwip(4), sbp(4), fwcontrol(8), kldload(8)
HISTORY
The fwohci device driver first appeared in FreeBSD 5.0.
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
connected with un-trustable devices because a node can monitor all the
traffic.
FreeBSD 14.0-RELEASE-p11 December 24, 2020 FreeBSD 14.0-RELEASE-p11