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Document powerstate callback in audio_hw_if

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This commit is contained in:
jmcneill 2006-03-07 15:18:11 +00:00
parent d2e442a982
commit 675467928f
1 changed files with 11 additions and 1 deletions
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12
share/man/man9/audio.9
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@ -1,4 +1,4 @@
.\" $NetBSD: audio.9,v 1.34 2005/12/20 19:53:14 rpaulo Exp $
.\" $NetBSD: audio.9,v 1.35 2006/03/07 15:18:11 jmcneill Exp $
.\"
.\" Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -94,6 +94,9 @@ struct audio_hw_if {
int (*trigger_input)(void *, void *, void *, int,
void (*)(void *), void *, const audio_params_t *);
int (*dev_ioctl)(void *, u_long, caddr_t, int, struct lwp *);
int (*powerstate)(void *, int);
#define AUDIOPOWER_ON 1
#define AUDIOPOWER_OFF 0
};
typedef struct audio_params {
@ -509,6 +512,13 @@ optional, is called when an
.Xr ioctl 2
is not recognized by the generic audio driver.
Return 0 on success, otherwise an error code.
.It Dv int powerstate(void *hdl, int state)
.br
optional, is called on the first open and last close of the audio
device.
.Va state
may be one of AUDIOPOWER_ON or AUDIOPOWER_OFF. Returns 0 on success,
otherwise an error code.
.El
.Pp
The