1 .\" $NetBSD: prop_send_ioctl.3,v 1.4 2008/01/21 22:15:04 christos 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
43 .Fn prop_array_send_ioctl "prop_array_t array" "int fd" "unsigned long cmd"
45 .Fn prop_array_recv_ioctl "int fd" "unsigned long cmd" "prop_array_t *arrayp"
47 .Fn prop_dictionary_send_ioctl "prop_dictionary_t dict" "int fd" \
50 .Fn prop_dictionary_recv_ioctl "int fd" "unsigned long cmd" \
51 "prop_dictionary_t *dictp"
52 .Fn prop_dictionary_sendrecv_ioctl "prop_dictionary_t dict" "int fd" \
53 "unsigned long cmd" "prop_dictionary_t *dictp"
56 .Nm prop_array_send_ioctl ,
57 .Nm prop_array_recv_ioctl ,
58 .Nm prop_dictionary_send_ioctl ,
59 .Nm prop_dictionary_recv_ioctl ,
61 .Nm prop_dictionary_sendrecv_ioctl
62 functions implement the user space side of a protocol for sending property
63 lists to and from the kernel using
66 If successful, functions return zero. Otherwise, an error number is returned to indicate the error.
68 .Fn prop_array_send_ioctl
70 .Fn prop_dictionary_send_ioctl
74 Cannot allocate memory
79 .Fn prop_array_recv_ioctl
81 .Fn prop_dictionary_recv_ioctl
92 errors may be returned.
96 example demonstrates using
97 .Fn prop_dictionary_send_ioctl
99 .Fn prop_dictionary_recv_ioctl
103 foo_setprops(prop_dictionary_t dict)
107 fd = open("/dev/foo", O_RDWR, 0640);
111 (void) prop_dictionary_send_ioctl(dict, fd, FOOSETPROPS);
119 prop_dictionary_t dict;
122 fd = open("/dev/foo", O_RDONLY, 0640);
126 if (prop_dictionary_recv_ioctl(fd, FOOGETPROPS, \*[Am]dict) != 0)
136 .Nm prop_dictionary_sendrecv_ioctl
137 function combines the send and receive functionality, allowing for
138 ioctls that require two-way communication
139 .Pq for example to specify arguments for the ioctl operation .
142 .Xr prop_dictionary 3 ,
144 .Xr prop_copyin_ioctl 9
148 property container object library first appeared in