IEEE1394IF(4) | Device Drivers Manual | IEEE1394IF(4)

# NAME

`ieee1394if` —
IEEE1394 High-performance Serial Bus

# SYNOPSIS

`ieee1394if* at fwohci?`

# DESCRIPTION

NetBSD provides machine-independent bus support and raw drivers for IEEE1394 interfaces.

The `ieee1394if` driver consists of two layers: the controller and the bus layer. The controller attaches to a physical bus (like pci(4)). The `ieee1394if` 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 IEEE1394 bus. The root node is dynamically assigned with a PHY device function. Also, the other IEEE1394 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 `ieee1394if` bus, every device is identified by an EUI 64 address.

# FILES

/dev/fw0.0
/dev/fwmem0.0

# SEE ALSO

fwip(4), fwohci(4), pci(4), sbp(4), fwctl(8), sysctl(8)

# HISTORY

The `ieee1394if` driver first appeared in FreeBSD 5.0, as `firewire`. It was added to NetBSD 4.0 under its present name.

# AUTHORS

The `ieee1394if` driver was written by Katsushi Kobayashi and Hidetoshi Shimokawa for the FreeBSD project. It was added to NetBSD 4.0 by KIYOHARA Takashi.

# BUGS

See fwohci(4) for security notes.

June 18, 2005 | NetBSD 9.4