1 Buf* bopen(long (*)(Buf*, void*, long, ulong), int, int, int);
2 long bread(Buf*, void*, long, vlong);
4 long bufread(Otrack*, void*, long, vlong);
5 long bufwrite(Otrack*, void*, long);
6 long bwrite(Buf*, void*, long);
7 char* disctype(Drive *drive);
10 Drive* mmcprobe(Scsi*);