3 .\" Copyright (c) 1998 Doug Rabson
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32 .Dt DEVICE_GET_SOFTC 9
36 .Nd access driver private instance variables
41 .Fn device_get_softc "device_t dev"
43 Return the driver-specific software context of
45 The softc is automatically allocated and zeroed when the device is
47 The softc is also initialized and present when a device is probed,
48 but is subject to caveats as described in
50 The size of the allocation is determined by the device's
52 information used to define the driver.
53 The softc typically encapsulates the state of this instance of the
56 Driver writers are discouraged from using their own softc management
58 Driver writers should not copy such mechanisms found in drivers in the
59 tree that predate this function.
61 The pointer to the driver-specific instance variable is returned.
65 .Xr device_set_softc 9 ,
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