NAME¶
ohci —
OHCI USB Host Controller driver
DESCRIPTION¶
The ohci driver provides support for OHCI-type PCI based
USB controllers.
HARDWARE¶
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)
SYSCTL VARIABLES¶
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.
HISTORY¶
The ohci device driver first appeared in
FreeBSD 3.0.
