10-22-2013
So if USB is such a mediocre protocol for electricity, transfer rates, and lack of DMA, why/how is it the most universal and popular? Why isn't firewire, or thunderbolt made standard? Proprietary reasons?
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FIREWIRE(4) BSD 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.
FILES
/dev/fw0.0
/dev/fwmem0.0
SEE ALSO
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.
BSD
April 1, 2006 BSD