1 .. SPDX-License-Identifier: GPL-2.0
2
3 .. _GPIO_V2_LINE_SET_VALUES_IOCTL:
4
5 *****************************
6 GPIO_V2_LINE_SET_VALUES_IOCTL
7 *****************************
8
9 Name
10 ====
11
12 GPIO_V2_LINE_SET_VALUES_IOCTL - Set the values
13
14 Synopsis
15 ========
16
17 .. c:macro:: GPIO_V2_LINE_SET_VALUES_IOCTL
18
19 ``int ioctl(int req_fd, GPIO_V2_LINE_SET_VALUE
20
21 Arguments
22 =========
23
24 ``req_fd``
25 The file descriptor of the GPIO character
26 :c:type:`request.fd<gpio_v2_line_request>`
27
28 ``values``
29 The :c:type:`line_values<gpio_v2_line_valu
30 to indicate the subset of requested lines
31 indicate the new value.
32
33 Description
34 ===========
35
36 Set the values of requested output lines.
37
38 The values set are logical, indicating if the
39 The ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` flag cont
40 values (active/inactive) and physical values (
41 If ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` is not set
42 is low. If ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` i
43 inactive is high.
44
45 Only the values of output lines may be set.
46 Attempting to set the value of an input line i
47
48 Return Value
49 ============
50
51 On success 0.
52
53 On error -1 and the ``errno`` variable is set
54 Common error codes are described in error-code
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