rom/exec/adddevice.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Add a device to the public list of devices.
   6     Lang: english
   7 */
   8 #include <aros/debug.h>
   9 #include <exec/execbase.h>
  10 #include <exec/devices.h>
  11 #include <aros/libcall.h>
  12 #include <proto/exec.h>
  13
  14 /*****************************************************************************
  15
  16     NAME */
  17
  18         AROS_LH1(void, AddDevice,
  19
  20 /*  SYNOPSIS */
  21         AROS_LHA(struct Device *, device,A1),
  22
  23 /*  LOCATION */
  24         struct ExecBase *, SysBase, 72, Exec)
  25
  26 /*  FUNCTION
  27         Adds a given device to the system's device list after checksumming
  28         the device vectors. This function is not for general use but
  29         (of course) for building devices that don't use exec's MakeLibrary()
  30         mechanism.
  31
  32     INPUTS
  33         device - Pointer to a ready for use device structure.
  34
  35     RESULT
  36
  37     NOTES
  38
  39     EXAMPLE
  40
  41     BUGS
  42
  43     SEE ALSO
  44         RemDevice(), OpenDevice(), CloseDevice()
  45
  46     INTERNALS
  47
  48 ******************************************************************************/
  49 {
  50     AROS_LIBFUNC_INIT
  51     ASSERT_VALID_PTR(device);
  52
  53     /* Just in case the user forgot them */
  54     device->dd_Library.lib_Node.ln_Type=NT_DEVICE;
  55     device->dd_Library.lib_Flags|=LIBF_CHANGED;
  56
  57     /* Build checksum for device vectors */
  58     SumLibrary(&device->dd_Library);
  59
  60     /* Arbitrate for the device list */
  61     Forbid();
  62
  63     /* And add the device */
  64     Enqueue(&SysBase->DeviceList,&device->dd_Library.lib_Node);
  65
  66     /* All done. */
  67     Permit();
  68     AROS_LIBFUNC_EXIT
  69 } /* AddDevice */
  70