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FIREWIRE(4) FreeBSD Kernel Interfaces Manual FIREWIRE(4)
NAME
firewire - IEEE1394 High-performance Serial Bus
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"
DESCRIPTION
FreeBSD provides machine-independent bus support and raw drivers for
firewire interfaces.
The firewire driver consists of two layers: the controller and the bus
layer. The controller attaches to a physical bus (like pci(4)). The
firewire bus attaches to the controller. Additional drivers can be
attached to the bus.
Up to 63 devices, including the host itself, can be attached to a
firewire bus. The root node is dynamically assigned with a PHY device
function. Also, the other firewire bus specific parameters, e.g., node
ID, cycle master, isochronous resource manager and bus manager, are
dynamically assigned, after bus reset is initiated. On the firewire bus,
every device is identified by an EUI 64 address.
Debugging over the firewire interface is possible with the dcons(4)
driver. Please see
https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/#kerneldebug-dcons
for details on how to setup debugging with firewire.
FILES
/dev/fw0.0
/dev/fwmem0.0
SEE ALSO
dcons(4), fwe(4), fwip(4), fwohci(4), pci(4), sbp(4), eui64(5),
fwcontrol(8), kldload(8), sysctl(8)
HISTORY
The firewire driver first appeared in FreeBSD 5.0.
AUTHORS
The firewire driver was written by Katsushi Kobayashi and Hidetoshi
Shimokawa for the FreeBSD project.
BUGS
See fwohci(4) for security notes.
FreeBSD 14.0-RELEASE-p11 June 6, 2022 FreeBSD 14.0-RELEASE-p11