## device_set_status

Function - Set device status.

### SYNOPSIS

    #include< device/device.h>

    kern_return_t   device_set_status
                    (mach_port_t                             device,
                     dev_flavor_t                            flavor,
                     dev_status_t                            status,
                     mach_msg_type_number_t            status_count);

### PARAMETERS

device
  [in device send right] A device port to the device to be manipulated.

flavor
  [in scalar] The type of status information to set.

status
  [pointer to in array of natural-sized units] The status information to set.

status_count
  [in scalar] The size of the status information (in natural-sized units).

### DESCRIPTION

The device_set_status function sets device status. The possible values of flavor as well as the corresponding meanings are device dependent.

### RETURN VALUES

D_DEVICE_DOWN
  Device has been shut down

D_IO_ERROR
  Hardware I/O error

D_NO_SUCH_DEVICE
  No device with that name, or the device is not operational.

D_OUT_OF_BAND
  Out-of-band condition occurred on device (such as typing <Ctrl>-C).

D_READ_ONLY
  Data cannot be written to this device.

### RELATED INFORMATION

Functions: device_get_status.