FWOHCI(4) | Device Drivers Manual | FWOHCI(4) |
fwohci
— OHCI
IEEE1394 chipset device driver
fwohci* at cardbus? function ?
fwohci* at pci? dev ? function ?
The fwohci
driver provides support for
PCI/CardBus IEEE1394 interface cards. The driver supports the following IEEE
1394 OHCI chipsets:
The fwohci
device driver first appeared in
FreeBSD 5.0. It was added to NetBSD
4.0.
The fwohci
device driver was written by
Katsushi Kobayashi and Hidetoshi
Shimokawa. It was added to NetBSD 4.0 by
KIYOHARA Takashi.
The driver allows physical access from any node 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, IEEE1394 is a bus and not expected to be connected with un-trustable devices because a node can monitor all the traffic.
June 18, 2005 | NetBSD 10.99 |