tag	line	file	source code
CSR15	76	drivers/net/ariadne.h	#define CSR15    0x0f00  /* - Mode Register */
CSR15	306	drivers/net/atarilance.c	#define CSR15  15    /* promiscuous mode */
CSR15	165	drivers/net/tulip.c	CSR15=0x78  /* SIA general        watchdog  */