1 .\" $NetBSD: prop_send_ioctl.3,v 1.6 2011/01/20 10:44:42 wiz Exp $
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7 .\" by Jason R. Thorpe.
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34 .Nm prop_array_send_ioctl ,
35 .Nm prop_array_recv_ioctl ,
36 .Nm prop_dictionary_send_ioctl ,
37 .Nm prop_dictionary_recv_ioctl ,
38 .Nm prop_dictionary_sendrecv_ioctl
39 .Nd Send and receive propertly lists to and from the kernel using ioctl
45 .Fn prop_array_send_ioctl "prop_array_t array" "int fd" "unsigned long cmd"
47 .Fn prop_array_recv_ioctl "int fd" "unsigned long cmd" "prop_array_t *arrayp"
49 .Fn prop_dictionary_send_ioctl "prop_dictionary_t dict" "int fd" \
52 .Fn prop_dictionary_recv_ioctl "int fd" "unsigned long cmd" \
53 "prop_dictionary_t *dictp"
54 .Fn prop_dictionary_sendrecv_ioctl "prop_dictionary_t dict" "int fd" \
55 "unsigned long cmd" "prop_dictionary_t *dictp"
58 .Nm prop_array_send_ioctl ,
59 .Nm prop_array_recv_ioctl ,
60 .Nm prop_dictionary_send_ioctl ,
61 .Nm prop_dictionary_recv_ioctl ,
63 .Nm prop_dictionary_sendrecv_ioctl
64 functions implement the user space side of a protocol for sending property
65 lists to and from the kernel using
68 If successful, functions return zero.
69 Otherwise, an error number is returned to indicate the error.
73 example demonstrates using
74 .Fn prop_dictionary_send_ioctl
76 .Fn prop_dictionary_recv_ioctl
80 foo_setprops(prop_dictionary_t dict)
84 fd = open("/dev/foo", O_RDWR, 0640);
88 (void) prop_dictionary_send_ioctl(dict, fd, FOOSETPROPS);
96 prop_dictionary_t dict;
99 fd = open("/dev/foo", O_RDONLY, 0640);
103 if (prop_dictionary_recv_ioctl(fd, FOOGETPROPS, \*[Am]dict) != 0)
113 .Nm prop_dictionary_sendrecv_ioctl
114 function combines the send and receive functionality, allowing for
115 ioctls that require two-way communication
116 .Pq for example to specify arguments for the ioctl operation .
118 .Fn prop_array_send_ioctl
120 .Fn prop_dictionary_send_ioctl
124 Cannot allocate memory
129 .Fn prop_array_recv_ioctl
131 .Fn prop_dictionary_recv_ioctl
140 In addition to these,
142 errors may be returned.
145 .Xr prop_dictionary 3 ,
147 .Xr prop_copyin_ioctl 9
151 property container object library first appeared in