159874Speter/* 259874Speter * Header for general data acquisition definitions. 359874Speter * 459874Speter * $FreeBSD$ 542899Sjkh */ 642899Sjkh 742899Sjkh#ifndef _SYS_DATAACQ_H_ 842899Sjkh#define _SYS_DATAACQ_H_ 942899Sjkh 1042899Sjkh#include <sys/ioccom.h> 1142899Sjkh 1242899Sjkh/* Period in microseconds between analog I/O samples. 1342899Sjkh */ 1442899Sjkh#define AD_MICRO_PERIOD_SET _IOW('A', 1, long) 1542899Sjkh#define AD_MICRO_PERIOD_GET _IOR('A', 2, long) 1642899Sjkh 1742899Sjkh/* Gain list support. Initially all gains are 1. If the board 1842899Sjkh * supports no gains at all then AD_NGAINS_GET will return a 0. 1942899Sjkh * 2042899Sjkh * AD_NGAINS_GET: Return the number of gains the board supports 2142899Sjkh * 2242899Sjkh * AD_SUPPORTED_GAINS: Get the supported gains. 2342899Sjkh * The driver will copy out "ngains" doubles, 2442899Sjkh * where "ngains" is obtained with AD_NGAINS_GET. 2542899Sjkh * 2642899Sjkh * AD_GAINS_SET: Set the gain list. The driver will copy in "ngains" ints. 2742899Sjkh * 2842899Sjkh * AD_GAINS_GET: Get the gain list. The driver will copy out "ngains" ints. 2942899Sjkh */ 3042899Sjkh 3142899Sjkh#define AD_NGAINS_GET _IOR('A', 3, int) 3242899Sjkh#define AD_NCHANS_GET _IOR('A', 4, int) 3342899Sjkh#define AD_SUPPORTED_GAINS _IO('A', 5) 3442899Sjkh#define AD_GAINS_SET _IO('A', 6) 3542899Sjkh#define AD_GAINS_GET _IO('A', 7) 3642899Sjkh 3742899Sjkh#endif /* !_SYS_DATAACQ_H_ */ 38