NetBSD/sys/dev/isa/pcppireg.h

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/* $NetBSD: pcppireg.h,v 1.1 1998/04/15 20:26:18 drochner Exp $ */
/*
* PPI speaker control values
*/
#define PIT_ENABLETMR2 0x01 /* Enable timer/counter 2 */
#define PIT_SPKRDATA 0x02 /* Direct to speaker */
#define PIT_SPKR (PIT_ENABLETMR2|PIT_SPKRDATA)