taglinefilesource code
head23include/linux/fd.hunsigned int size, sect, head, track, stretch;
head29include/linux/fd.hunsigned int device,head,track;
head56include/linux/hdreg.hunsigned char head;    /* starting head */
head26include/linux/tty.hunsigned long head;
head41include/linux/tty.h#define EMPTY(a) ((a)->head == (a)->tail)
head42include/linux/tty.h#define LEFT(a) (((a)->tail-(a)->head-1)&(TTY_BUF_SIZE-1))
head43include/linux/tty.h#define LAST(a) ((a)->buf[(TTY_BUF_SIZE-1)&((a)->head-1)])
head45include/linux/tty.h#define CHARS(a) (((a)->head-(a)->tail)&(TTY_BUF_SIZE-1))
head49include/linux/tty.hint head;
head52include/linux/tty.hhead = (queue->head + 1) & (TTY_BUF_SIZE-1);
head53include/linux/tty.hif (head != queue->tail) {
head54include/linux/tty.hqueue->buf[queue->head] = c;
head55include/linux/tty.hqueue->head = head;
head64include/linux/tty.hif (queue->tail != queue->head) {
head229kernel/blk_drv/floppy.cstatic unsigned char head = 0;
head442kernel/blk_drv/floppy.c((sector-1 + head*floppy->sect)<<9);
head471kernel/blk_drv/floppy.coutput_byte(head<<2 | current_drive);
head473kernel/blk_drv/floppy.coutput_byte(head);
head481kernel/blk_drv/floppy.coutput_byte(head<<2 | current_drive);
head540kernel/blk_drv/floppy.coutput_byte((head<<2) | current_drive);
head579kernel/blk_drv/floppy.coutput_byte(head<<2 | current_drive);
head642kernel/blk_drv/floppy.coutput_byte(head<<2 | current_drive);
head656kernel/blk_drv/floppy.coutput_byte(head << 2 | current_drive);
head683kernel/blk_drv/floppy.coutput_byte(head<<2 | current_drive);
head715kernel/blk_drv/floppy.c*here++ = head;
head771kernel/blk_drv/floppy.chead = block % floppy->head;
head772kernel/blk_drv/floppy.ctrack = block / floppy->head;
head789kernel/blk_drv/floppy.c(format_req.head & 0xfffe) || probing) {
head793kernel/blk_drv/floppy.chead = format_req.head;
head805kernel/blk_drv/floppy.c((sector + head*floppy->sect)<<9);
head60kernel/blk_drv/hd.cunsigned int head,sect,cyl,wpcom,lzone,ctl;
head226kernel/blk_drv/hd.chd_info[drive].head = *(unsigned char *) (2+BIOS);
head269kernel/blk_drv/hd.chd[i<<6].nr_sects = hd_info[i].head*
head326kernel/blk_drv/hd.cunsigned int head,unsigned int cyl,unsigned int cmd,
head331kernel/blk_drv/hd.cif (drive>1 || head>15)
head349kernel/blk_drv/hd.coutb_p(0xA0|(drive<<4)|head,++port);
head398kernel/blk_drv/hd.chd_out(i,hd_info[i].sect,hd_info[i].sect,hd_info[i].head-1,
head544kernel/blk_drv/hd.cunsigned int sec,head,cyl;
head559kernel/blk_drv/hd.chead = block % hd_info[dev].head;
head560kernel/blk_drv/hd.ccyl = block / hd_info[dev].head;
head575kernel/blk_drv/hd.chd_out(dev,nsect,sec,head,cyl,WIN_WRITE,&write_intr);
head586kernel/blk_drv/hd.chd_out(dev,nsect,sec,head,cyl,WIN_READ,&read_intr);
head607kernel/blk_drv/hd.cput_fs_byte(hd_info[dev].head,
head22kernel/blk_drv/scsi/sd.hunsigned char head;    /* ? */
head88kernel/chr_drv/keyboard.cqp->buf[qp->head]=ch;
head89kernel/chr_drv/keyboard.cif ((new_head=(qp->head+1)&(TTY_BUF_SIZE-1)) != qp->tail)
head90kernel/chr_drv/keyboard.cqp->head=new_head;
head102kernel/chr_drv/keyboard.cqp->buf[qp->head]=ch;
head103kernel/chr_drv/keyboard.cif ((new_head=(qp->head+1)&(TTY_BUF_SIZE-1))
head105kernel/chr_drv/keyboard.cqp->head=new_head;
head132kernel/chr_drv/tty_io.cDEC(tty->secondary->head);
head149kernel/chr_drv/tty_io.cDEC(tty->secondary->head);
head49kernel/chr_drv/tty_ioctl.cqueue->head = queue->tail;