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6 .TH LDI_PROP_GET_INT 9F "Jun 3, 2003"
8 ldi_prop_get_int, ldi_prop_get_int64 \- Lookup integer property
12 #include <sys/sunldi.h>
14 \fBint\fR \fBldi_prop_get_int\fR(\fBldi_handle_t\fR \fIlh\fR, \fBuint_t\fR \fIflags\fR, \fBchar *\fR\fIname\fR,
15 \fBint\fR \fIdefvalue\fR);
20 \fBint\fR\fB64_t ldi_prop_get_int64\fR(\fBldi_handle_t\fR \fIlh\fR, \fBuint_t\fR \fIflags\fR, \fBchar *\fR\fIname\fR,
21 \fBint64_t \fR\fIdefvalue\fR);
40 Possible flag values are some combination of:
47 Match the lookup request independent of the actual dev_t value that was used
48 when the property was created. Indicates any dev_t value (including
49 DDI_DEV_T_NONE) associated with a possible property match satisfies the
56 \fBDDI_PROP_DONTPASS\fR
59 Do not pass request to parent device information node if property not found.
65 \fBDDI_PROP_NOTPROM\fR
68 Do not look at PROM properties (ignored on platforms that do not support PROM
80 String containing the property name.
89 Integer value that is returned if the property is not found.
95 Solaris DDI specific (Solaris DDI)
99 The \fBldi_prop_get_int()\fR and \fBldi_prop_get_int64()\fR functions search
100 for an integer property associated with a device represented by the layered
101 driver handle. If the integer property is found, the functions return the
105 Properties are searched for based on the dip and dev_t values associated with
106 the layered handle, the property name, and type of the data (integer).
109 The property search order is as follows:
113 Search software properties created by the driver.
118 Search the software properties created by the system (or nexus nodes in the
124 Search the driver global properties list.
129 If DDI_PROP_NOTPROM is not set, search the PROM properties (if they exist).
134 If DDI_PROP_DONTPASS is not set, pass this request to the parent device
135 information node of the device represented by the layered handle.
144 Typically, the specific dev_t value associated with the device represented by
145 the layered handle (ldi_handle_t) is used as a part of the property match
146 criteria. This association is handled by the layered driver infrastructure on
147 behalf of the consumers of the ldi property look up functions.
150 However, if the LDI_DEV_T_ANY flag is used, the ldi property lookup functions
151 match the request regardless of the dev_t value associated with the property at
152 the time of its creation. If a property was created with a dev_t set to
153 DDI_DEV_T_NONE, the only way to look up this property is with the LDI_DEV_T_ANY
154 flag. PROM properties are always created with a dev_t set to DDI_DEV_T_NONE.
157 name must always be set to the name of the property being looked up.
160 The return value of the routine is the value of property. If the property is
161 not found, the argument defvalue is returned as the property value.
164 \fBldi_prop_get_int64()\fR does not search the PROM for 64-bit property values.
168 \fBldi_prop_get_int()\fR and \fBldi_prop_get_int64()\fR return the property
169 value. If the property is not found, the argument \fBdefvalue\fR is returned.
170 If the property is found, but cannot be decoded into an int or an int64_t,
171 DDI_PROP_NOT_FOUND is returned.
175 \fBldi_prop_get_int()\fR and \fBldi_prop_get_int64()\fR can be called from user
180 Using\fB ldi_prop_get_int64()\fR.
184 The following example demonstrates the use of ldi_prop_get_int64().
187 * Get the value of the integer "timeout" property, using
188 * our own default if no such property exists
191 int64_t timeout, defval;
193 timeout = ldi_prop_get_int64(lh, LDI_DEV_T_ANY|DDI_PROP_DONTPASS,
201 \fBddi_prop_get_int\fR(9F), \fBddi_prop_get_int64\fR(9F),
202 \fBldi_prop_exists\fR(9F)
205 \fIWriting Device Drivers\fR