Change sendfile() to use the new m_ext callback scheme for cleaning up after
[dragonfly.git] / sys / sys / dataacq.h
CommitLineData
984263bc
MD
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 $
1de703da 5 * $DragonFly: src/sys/sys/dataacq.h,v 1.2 2003/06/17 04:28:58 dillon Exp $
984263bc
MD
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_ */