1 .\" $NetBSD: prop_send_ioctl.3,v 1.8 2011/09/27 11:12:49 jym 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"
55 .Fn prop_dictionary_sendrecv_ioctl "prop_dictionary_t dict" "int fd" \
56 "unsigned long cmd" "prop_dictionary_t *dictp"
59 .Nm prop_array_send_ioctl ,
60 .Nm prop_array_recv_ioctl ,
61 .Nm prop_dictionary_send_ioctl ,
62 .Nm prop_dictionary_recv_ioctl ,
64 .Nm prop_dictionary_sendrecv_ioctl
65 functions implement the user space side of a protocol for sending property
66 lists to and from the kernel using
69 If successful, functions return zero.
70 Otherwise, an error number is returned to indicate the error.
74 example demonstrates using
75 .Fn prop_dictionary_send_ioctl
77 .Fn prop_dictionary_recv_ioctl
81 foo_setprops(prop_dictionary_t dict)
85 fd = open("/dev/foo", O_RDWR, 0640);
89 (void) prop_dictionary_send_ioctl(dict, fd, FOOSETPROPS);
97 prop_dictionary_t dict;
100 fd = open("/dev/foo", O_RDONLY, 0640);
104 if (prop_dictionary_recv_ioctl(fd, FOOGETPROPS, \*[Am]dict) != 0)
114 .Nm prop_dictionary_sendrecv_ioctl
115 function combines the send and receive functionality, allowing for
116 ioctls that require two-way communication
117 .Pq for example to specify arguments for the ioctl operation .
119 .Fn prop_array_send_ioctl
121 .Fn prop_dictionary_send_ioctl
125 Cannot allocate memory
130 .Fn prop_array_recv_ioctl
132 .Fn prop_dictionary_recv_ioctl
141 In addition to these,
143 errors may be returned.
146 .Xr prop_dictionary 3 ,
148 .Xr prop_copyin_ioctl 9
152 property container object library first appeared in