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Add a device_private() to return the driver's private data (softc). 

For now, this just returns the passed device_t (as a void *) because
device softcs currently contain a "struct device" as the first member.
This commit is contained in:
thorpej 2006-03-29 06:08:16 +00:00
parent 78ffd948be
commit 35947a37ad
2 changed files with 15 additions and 3 deletions
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15
sys/kern/subr_autoconf.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: subr_autoconf.c,v 1.109 2006/03/29 06:00:47 thorpej Exp $ */
/* $NetBSD: subr_autoconf.c,v 1.110 2006/03/29 06:08:16 thorpej Exp $ */
/*
* Copyright (c) 1996, 2000 Christopher G. Demetriou
@ -77,7 +77,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.109 2006/03/29 06:00:47 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: subr_autoconf.c,v 1.110 2006/03/29 06:08:16 thorpej Exp $");
#include "opt_ddb.h"
@ -1621,6 +1621,17 @@ device_locator(device_t dev, int locnum)
return (dev->dv_locators[locnum]);
}
void *
device_private(device_t dev)
{
/*
* For now, at least, "struct device" is the first thing in
* the driver's private data. So, we just return ourselves.
*/
return (dev);
}
/*
* device_is_a:
*

3
sys/sys/device.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: device.h,v 1.88 2006/03/29 06:00:47 thorpej Exp $ */
/* $NetBSD: device.h,v 1.89 2006/03/29 06:08:16 thorpej Exp $ */
/*
* Copyright (c) 1996, 2000 Christopher G. Demetriou
@ -370,6 +370,7 @@ const char *device_xname(device_t);
device_t device_parent(device_t);
boolean_t device_is_active(device_t);
int device_locator(device_t, u_int);
void *device_private(device_t);
boolean_t device_is_a(device_t, const char *);