Commodore Amiga A500 - Page 64

longword description
0
string with dos handler name
1
string with exec device name
2 unit number (for
OpenDevice)
3 flags (for OpenDevice)
4 # of longwords in rest of environment
5-n
file handler environment (see
librariestfile-
hand1er.h)
RESULTS
deviceNode - pointer to initialize device node structure, or null if
there was not enough memory.
EXAMPLES
/* set up a 3.5" amiga format floppy drive for unit 1 */
char execName[] = "trackdisk.device";
char dosName[] = "dfl ";
ULONG parmPkt[] = [
(ULONG) dosName,
(ULONG) execName,
1, /* unit number */
0, /* OpenDevice flags */
/* here is the environment block */
11,
/* table upper bound */
512>>2. /* # longwords in a block */
0,
/* sector origin - unused */
2,
/* number of surfaces */
1.
/* secs per logical block - unused */
11,
/* secs per track */
2,
/* reserved blocks - 2 boot blocks */
0.
/* ?? - unused */
.O, /* interleave */
0, /* lower cylinder */
79, /* upper cylinder */
5,
/* number of buffers */
l:
struct Device Node *node, *MakeDosNode();
node = MakeDosNode( parmPkt ):
BUGS
SEE ALSO
AddDosNode