tag	line	file	source code
HD_CMD	219	drivers/block/hd.c	outb_p(hd_info[drive].ctl,HD_CMD);
HD_CMD	370	drivers/block/hd.c	outb_p(4,HD_CMD);
HD_CMD	372	drivers/block/hd.c	outb_p(hd_info[0].ctl & 0x0f,HD_CMD);