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GETDEVVP(9)              BSD Kernel Developer's Manual             GETDEVVP(9)

NAME
     getdevvp, bdevvp, cdevvp -- create a vnode for a device

SYNOPSIS
     #include <&lt;sys/param.h>&gt;
     #include <&lt;sys/vnode.h>&gt;

     int
     getdevvp(dev_t dev, struct vnode **vpp, enum vtype type);

     int
     bdevvp(dev_t dev, struct vnode **vpp);

     int
     cdevvp(dev_t dev, struct vnode **vpp);

DESCRIPTION
     The getdevvp() function creates a vnode for a device of type type with a
     device number of dev, and returns a pointer to it in vpp.

     Its arguments are:

     dev       The device number of the desired device.

     vpp       Where the vnode will be returned on success.

     type      The type of device, either:

               VBLK  For a block device, or

               VCHR  for a character device.

     bdevvp() and cdevvp() use getdevvp internally, specifying the third argu-
     ment.  bdevvp() will create a vnode for a block device, and is used for
     the root file system and swap areas, among other things.  cdevvp() will
     create a vnode for a character device and is used in console handling.

RETURN VALUES
     All functions return 0 on success.  If an error occurs, vpp will point to
     a NULLVP.  See getnewvnode(9) for further return values.

SEE ALSO
     getnewvnode(9), vnode(9)

BSD                              June 4, 2013                              BSD