usr/src/sys.386bsd/i386/isa/kbd.h

/*
 * Keyboard definitions
 */

/* commands and responses */
#define KBC_RESET       0xFF    /* Reset the keyboard */
#define KBC_STSIND      0xED    /* set keyboard status indicators */
#define KBR_OVERRUN     0xFE    /* Keyboard flooded */
#define KBR_RESEND      0xFE    /* Keyboard needs resend of command */
#define KBR_ACK         0xFA    /* Keyboard did receive command */
#define KBR_RSTDONE     0xAA    /* Keyboard reset complete */