packet_command     93 include/linux/cdrom.h 			       struct packet_command *);
packet_command    120 include/linux/cdrom.h 			     struct packet_command *cgc);
packet_command    122 include/linux/cdrom.h 			    struct packet_command *cgc,
packet_command    124 include/linux/cdrom.h extern void init_cdrom_command(struct packet_command *cgc,