USB_REGISTER_DEVICE_(9) USB Core APIs USB_REGISTER_DEVICE_(9)NAME
usb_register_device_driver - register a USB device (not interface) driver
SYNOPSIS
int usb_register_device_driver(struct usb_device_driver * new_udriver, struct module * owner);
ARGUMENTS
new_udriver
USB operations for the device driver
owner
module owner of this driver.
DESCRIPTION
Registers a USB device driver with the USB core. The list of unattached devices will be rescanned whenever a new driver is added, allowing
the new driver to attach to any recognized devices. Returns a negative error code on failure and 0 on success.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 USB_REGISTER_DEVICE_(9)
Check Out this Related Man Page
EHCI(4) BSD Kernel Interfaces Manual EHCI(4)NAME
ehci -- USB Enhanced Host Controller driver
SYNOPSIS
device ehci
DESCRIPTION
The ehci driver provides support for the USB Enhanced Host Controller Interface, which is used by USB 2.0 controllers.
EHCI controllers are peculiar in that they can only handle the USB 2.0 protocol. This means that they normally have one or more companion
controllers (i.e., ohci(4) or uhci(4)) handling USB 1.x devices. Consequently each USB connector is electrically connected to two USB con-
trollers. The handling of this is totally automatic, but can be noticed since USB 1.x and USB 2.0 devices plugged in to the same connector
appear to connect to different USB busses.
SEE ALSO ohci(4), uhci(4), usb(4), xhci(4)HISTORY
The ehci device driver first appeared in FreeBSD 5.1.
LOADER TUNABLES
When the kernel has been compiled with options USB_DEBUG, some tunables become available that affect the behavior of ehci. These tunables
can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).
hw.usb.ehci.lostintrbug
This tunable enables the lost interrupt quirk. The default value is 0 (off).
hw.usb.ehci.iaadbug
This tunable enables the EHCI doorbell quirk. The default value is 0 (off).
hw.usb.ehci.no_hs
This tunable disables USB devices to attach like HIGH-speed ones and will force all attached devices to attach to the FULL- or LOW-
speed companion controller. The default value is 0 (off).
BSD March 4, 2012 BSD
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