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DIOCGDINFO(9r)


NAME

  DIOCGDINFO - Disk: Returns a disk label


SYNOPSIS

  #include <io/common/devio.h>
  #include <sys/ioctl.h>


  int ioctl(
	  dev_t dev,
	  register int DIOCGDINFO,
	  caddr_t data,
	  int flag );


DESCRIPTION

  The DIOCGDINFO ioctl command returns a disklabel structure to the user data
  buffer. If the disk label is not valid, it returns EINVAL.


EXAMPLE

  See Writing Device Drivers: Advanced Topics for an example of how a disk
  device driver implements the DIOCGDINFO command.


SEE ALSO

  Data Structures: disklabel(9s)

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