DEVICE_GET_SOFTC(9) BSD Kernel Developer's Manual DEVICE_GET_SOFTC(9)NAME
device_get_softc -- access driver private instance variables
SYNOPSIS
#include <sys/param.h>
#include <sys/bus.h>
void *
device_get_softc(device_t dev);
DESCRIPTION
Return the driver-specific state of dev. The softc is automatically allocated and zeroed when the device is attached. The softc is also
initialized and present when a device is probed, but is subject to caveats as described in DEVICE_PROBE(9). The size of the allocation is
determined by the device's driver_t information used to define the driver. The softc typically encapsulates the state of this instance of
the device.
Driver writers are discouraged from using their own softc management mechanisms. Driver writers should not copy such mechanisms found in
drivers in the tree that predate this function.
RETURN VALUES
The pointer to the driver-specific instance variable is returned.
SEE ALSO device(9), DEVICE_PROBE(9), device_set_softc(9), driver(9)AUTHORS
This manual page was written by Doug Rabson.
BSD August 2, 2005 BSD
Check Out this Related Man Page
DEVICE_GET_SOFTC(9) BSD Kernel Developer's Manual DEVICE_GET_SOFTC(9)NAME
device_get_softc -- access driver private instance variables
SYNOPSIS
#include <sys/param.h>
#include <sys/bus.h>
void *
device_get_softc(device_t dev);
DESCRIPTION
Return the driver-specific state of dev. The softc is automatically allocated and zeroed when the device is attached. The softc is also
initialized and present when a device is probed, but is subject to caveats as described in DEVICE_PROBE(9). The size of the allocation is
determined by the device's driver_t information used to define the driver. The softc typically encapsulates the state of this instance of
the device.
Driver writers are discouraged from using their own softc management mechanisms. Driver writers should not copy such mechanisms found in
drivers in the tree that predate this function.
RETURN VALUES
The pointer to the driver-specific instance variable is returned.
SEE ALSO device(9), DEVICE_PROBE(9), device_set_softc(9), driver(9)AUTHORS
This manual page was written by Doug Rabson.
BSD August 2, 2005 BSD
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