open_disk
static int open_disk(int flag);
if (open_disk(u_flag) < 0)
struct open_disk *od;
od = (struct open_disk *)pa->dev->dd.d_opendata;
struct open_disk *od;
od = (struct open_disk *)dev->dd.d_opendata;
struct open_disk *od;
od = (struct open_disk *)dev->dd.d_opendata;
struct open_disk *od;
od = (struct open_disk *)dev->dd.d_opendata;
struct open_disk *od = dev->dd.d_opendata;
struct open_disk *od;
od = (struct open_disk *)malloc(sizeof(struct open_disk));
struct open_disk *od;
od = (struct open_disk *)dev->dd.d_opendata;
struct open_disk *od;
od = (struct open_disk *)dev->dd.d_opendata;