minix/servers/vfs/dmap.h

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/*
dmap.h
*/
/*===========================================================================*
* Device <-> Driver Table *
*===========================================================================*/
/* Device table. This table is indexed by major device number. It provides
* the link between major device numbers and the routines that process them.
* The table can be update dynamically. The field 'dmap_flags' describe an
* entry's current status and determines what control options are possible.
*/
extern struct dmap {
int _PROTOTYPE ((*dmap_opcl), (int, dev_t, int, int) );
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int _PROTOTYPE ((*dmap_io), (int, message *) );
endpoint_t dmap_driver;
char dmap_label[LABEL_MAX];
int dmap_flags;
int dmap_style;
struct filp *dmap_sel_filp;
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} dmap[];