tag	line	file	source code
serial_no	319	drivers/block/hd.c	fixstring (id->serial_no, sizeof(id->serial_no));
serial_no	1603	drivers/block/ide.c	fixstring (id->serial_no, sizeof(id->serial_no), bswap);
serial_no	100	include/linux/hdreg.h	unsigned char  serial_no[20];  /* 0 = not_specified */