ohci —
OHCI USB
Host Controller driver
device ohci
The
ohci driver provides support for OHCI-type PCI
based USB controllers.
The
ohci driver supports all OHCI v1.0 compliant
controllers including:
- AcerLabs M5237 (Aladdin-V)
- AMD-756
- OPTi 82C861 (FireLink)
- NEC uPD 9210
- CMD Tech 670 (USB0670)
- CMD Tech 673 (USB0673)
- NVIDIA nForce3
- Sun PCIO-2 (RIO USB)
The following variables are available as both
sysctl(8) variables and
loader(8) tunables:
- hw.usb.ohci.debug
- Debug output level, where 0 is debugging disabled and
larger values increase debug message verbosity. Default is 0.
ehci(4),
uhci(4),
xhci(4)
The
ohci device driver first appeared in
FreeBSD 3.0.
The
ohci driver was written by
Lennart Augustsson
<
[email protected]>
for the
NetBSD project.