tail head cat sleep
QR code linking to this page

Manual Pages  — XHCI

NAME

xhci – USB eXtensible Host Controller driver

CONTENTS

SYNOPSIS

device xhci

DESCRIPTION

The xhci driver provides support for the USB eXtensible Host Controller Interface, which allows use of USB 1.0, 2.0 and 3.0 devices on the same USB port.

The XHCI controller supports USB connection speeds up to 5.0Gbps when using a USB 3.0 compliant device.

HARDWARE

The xhci driver supports XHCI compatible controllers having PCI class 12 (serial bus), subclass 3 (USB) and programming interface 48 (XHCI).

SYSCTL VARIABLES

The following variables are available as both sysctl(8) variables and loader(8) tunables:
hw.usb.xhci.debug
  Debug output level, where 0 is debugging disabled and larger values increase debug message verbosity. Default is 0.

SEE ALSO

ehci(4), ohci(4), uhci(4), usb(4)

HISTORY

The xhci device driver first appeared in FreeBSD 8.2 .

XHCI (4) April 24, 2018

tail head cat sleep
QR code linking to this page


Please direct any comments about this manual page service to Ben Bullock. Privacy policy.

A computer would deserve to be called intelligent if it could deceive a human into believing that it was human.
— Alan Turing