NAME¶

resource_int_value, resource_long_value, resource_string_value — get a value from the hints mechanism

SYNOPSIS¶

#include <sys/param.h>
#include <sys/bus.h>

int
resource_int_value(const char *name, int unit, const char *resname, int *result);

int
resource_long_value(const char *name, int unit, const char *resname, long *result);

int
resource_string_value(const char *name, int unit, const char *resname, const char **result);

DESCRIPTION¶

These functions fetch a value from the “hints” mechanism.

The functions take the following arguments:

name

The name of the device to get the resource value from.

unit

The unit number of the device. -1 is special and is used for wildcard entries.

resname

The resource name.

result

A pointer to memory in which to store the resource value.

RETURN VALUES¶

If successful, the functions return 0. Otherwise, a non-zero error code is returned.

ERRORS¶

The functions will fail if:

[ENOENT]

The resource could not be found.

[EFTYPE]

Inappropriate resource type.

SEE ALSO¶

device(9), driver(9)

AUTHORS¶

This manual page was written by Warner Losh <imp@FreeBSD.org>.