| | 1 | /* |
| | 2 | * Header for general data acquisition definitions. |
| | 3 | * |
| | 4 | * $FreeBSD: src/sys/sys/dataacq.h,v 1.4.6.1 2000/08/02 21:27:07 peter Exp $ |
| | 5 | * $DragonFly: src/sys/sys/dataacq.h,v 1.2 2003/06/17 04:28:58 dillon Exp $ |
| | 6 | */ |
| | 7 | |
| | 8 | #ifndef _SYS_DATAACQ_H_ |
| | 9 | #define _SYS_DATAACQ_H_ |
| | 10 | |
| | 11 | #include <sys/ioccom.h> |
| | 12 | |
| | 13 | /* Period in microseconds between analog I/O samples. |
| | 14 | */ |
| | 15 | #define AD_MICRO_PERIOD_SET _IOW('A', 1, long) |
| | 16 | #define AD_MICRO_PERIOD_GET _IOR('A', 2, long) |
| | 17 | |
| | 18 | /* Gain list support. Initially all gains are 1. If the board |
| | 19 | * supports no gains at all then AD_NGAINS_GET will return a 0. |
| | 20 | * |
| | 21 | * AD_NGAINS_GET: Return the number of gains the board supports |
| | 22 | * |
| | 23 | * AD_SUPPORTED_GAINS: Get the supported gains. |
| | 24 | * The driver will copy out "ngains" doubles, |
| | 25 | * where "ngains" is obtained with AD_NGAINS_GET. |
| | 26 | * |
| | 27 | * AD_GAINS_SET: Set the gain list. The driver will copy in "ngains" ints. |
| | 28 | * |
| | 29 | * AD_GAINS_GET: Get the gain list. The driver will copy out "ngains" ints. |
| | 30 | */ |
| | 31 | |
| | 32 | #define AD_NGAINS_GET _IOR('A', 3, int) |
| | 33 | #define AD_NCHANS_GET _IOR('A', 4, int) |
| | 34 | #define AD_SUPPORTED_GAINS _IO('A', 5) |
| | 35 | #define AD_GAINS_SET _IO('A', 6) |
| | 36 | #define AD_GAINS_GET _IO('A', 7) |
| | 37 | |
| | 38 | #endif /* !_SYS_DATAACQ_H_ */ |
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