PCI_ENABLE_DEVICE(9) Hardware Interfaces PCI_ENABLE_DEVICE(9)NAME
pci_enable_device - Initialize device before it's used by a driver.
SYNOPSIS
int pci_enable_device(struct pci_dev * dev);
ARGUMENTS
dev
PCI device to be initialized
DESCRIPTION
Initialize device before it's used by a driver. Ask low-level code to enable I/O and memory. Wake up the device if it was suspended.
Beware, this function can fail.
Note we don't actually enable the device many times if we call this function repeatedly (we just increment the count).
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 PCI_ENABLE_DEVICE(9)
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DEVCTL(8) BSD System Manager's Manual DEVCTL(8)NAME
devctl -- device control utility
SYNOPSIS
devctl attach device
devctl detach [-f] device
devctl disable [-f] device
devctl enable device
devctl suspend device
devctl resume device
devctl set driver [-f] device driver
DESCRIPTION
The devctl utility adjusts the state of individual devices in the kernel's internal device hierarchy. Each invocation of devctl consists of
a single command followed by command-specific arguments. Each command operates on a single device specified via the device argument. The
device may be specified either as the name of an existing device or as a bus-specific address. More details on supported address formats can
be found in devctl(3).
The following commands are supported:
attach device
Force the kernel to re-probe the device. If a suitable driver is found, it is attached to the device.
detach [-f] device
Detach the device from its current device driver. If the -f flag is specified, the device driver will be detached even if the device
is busy.
disable [-f] device
Disable a device. If the device is currently attached to a device driver, the device driver will be detached from the device, but
the device will retain its current name. If the -f flag is specified, the device driver will be detached even if the device is busy.
enable device
Enable a device. The device will probe and attach if a suitable device driver is found. Note that this can re-enable a device dis-
abled at boot time via a loader tunable.
suspend device
Suspend a device. This may include placing the device in a reduced power state.
resume device
Resume a suspended device to a fully working state.
set driver [-f] device driver
Force the device to use a device driver named driver. If the device is already attached to a device driver and the -f flag is speci-
fied, the device will be detached from its current device driver before it is attached to the new device driver. If the device is
already attached to a device driver and the -f flag is not specified, the device will not be changed.
SEE ALSO devctl(3), devinfo(8)HISTORY
The devctl utility first appeared in FreeBSD 11.0.
BSD February 5, 2015 BSD
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