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6 .TH DI_PROP_LOOKUP_BYTES 3DEVINFO "Mar 26, 2001"
8 di_prop_lookup_bytes, di_prop_lookup_ints, di_prop_lookup_int64,
9 di_prop_lookup_strings \- search for a property
13 \fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-ldevinfo\fR [ \fIlibrary\fR... ]
14 #include <libdevinfo.h>
16 \fBint\fR \fBdi_prop_lookup_bytes\fR(\fBdev_t\fR \fIdev\fR, \fBdi_node_t\fR \fInode\fR,
17 \fBconst char *\fR\fIprop_name\fR, \fBuchar_t **\fR\fIprop_data\fR);
22 \fBint\fR \fBdi_prop_lookup_ints\fR(\fBdev_t\fR \fIdev\fR, \fBdi_node_t\fR \fInode\fR,
23 \fBconst char *\fR\fIprop_name\fR, \fBint **\fR\fIprop_data\fR);
28 \fBint\fR \fBdi_prop_lookup_int64\fR(\fBdev_t\fR \fIdev\fR, \fBdi_node_t\fR \fInode\fR,
29 \fBconst char *\fR\fIprop_name\fR, \fBint64_t **\fR\fIprop_data\fR);
34 \fBint\fR \fBdi_prop_lookup_strings\fR(\fBdev_t\fR \fIdev\fR, \fBdi_node_t\fR \fInode\fR,
35 \fBconst char *\fR\fIprop_name\fR, \fBchar **\fR\fIprop_data\fR);
45 \fBdev_t\fR of minor node with which the property is associated.
46 \fBDDI_DEV_T_ANY\fR is a wild card that matches all \fBdev_t\fR's, including
56 Handle to the device node with which the property is associated.
65 For \fBdi_prop_lookup_bytes()\fR, the address to a pointer to an array of
66 unsigned characters containing the property data.
68 For \fBdi_prop_lookup_ints()\fR, the address to a pointer to an array of
69 integers containing the property data.
71 For \fBdi_prop_lookup_int64()\fR, the address to a pointer to an array of
72 64-bit integers containing the property data.
74 For \fBdi_prop_lookup_strings()\fR, the address to a pointer to a buffer
75 containing a concatenation of null-terminated strings containing the property
85 Name of the property for which to search.
91 These functions return the value of a known property name type and \fBdev_t\fR
92 value. All memory allocated by these functions is managed by the library and
93 must not be freed by the caller.
97 If the property is found, the number of entries in \fIprop_data\fR is returned.
98 If the property is a boolean type, 0 is returned and the existence of this
99 property indicates the value is true. Otherwise, -1 is returned and \fIerrno\fR
100 is set to indicate the error.
104 These functions will fail if:
120 The snapshot contains no property information.
129 The property does not exist; try \fBdi_prom_prop_lookup_*()\fR.
135 See \fBattributes\fR(5) for descriptions of the following attributes:
143 ATTRIBUTE TYPE ATTRIBUTE VALUE
145 Interface Stability Evolving
153 \fBdi_init\fR(3DEVINFO), \fBdi_prom_prop_lookup_bytes\fR(3DEVINFO),
154 \fBlibdevinfo\fR(3LIB), \fBattributes\fR(5)
157 \fIWriting Device Drivers\fR