1 .. SPDX-License-Identifier: GPL-2.0 1 .. SPDX-License-Identifier: GPL-2.0
2 2
3 .. _GPIO_V2_LINE_SET_VALUES_IOCTL: 3 .. _GPIO_V2_LINE_SET_VALUES_IOCTL:
4 4
5 ***************************** 5 *****************************
6 GPIO_V2_LINE_SET_VALUES_IOCTL 6 GPIO_V2_LINE_SET_VALUES_IOCTL
7 ***************************** 7 *****************************
8 8
9 Name 9 Name
10 ==== 10 ====
11 11
12 GPIO_V2_LINE_SET_VALUES_IOCTL - Set the values 12 GPIO_V2_LINE_SET_VALUES_IOCTL - Set the values of requested output lines.
13 13
14 Synopsis 14 Synopsis
15 ======== 15 ========
16 16
17 .. c:macro:: GPIO_V2_LINE_SET_VALUES_IOCTL 17 .. c:macro:: GPIO_V2_LINE_SET_VALUES_IOCTL
18 18
19 ``int ioctl(int req_fd, GPIO_V2_LINE_SET_VALUE 19 ``int ioctl(int req_fd, GPIO_V2_LINE_SET_VALUES_IOCTL, struct gpio_v2_line_values *values)``
20 20
21 Arguments 21 Arguments
22 ========= 22 =========
23 23
24 ``req_fd`` 24 ``req_fd``
25 The file descriptor of the GPIO character 25 The file descriptor of the GPIO character device, as returned in the
26 :c:type:`request.fd<gpio_v2_line_request>` 26 :c:type:`request.fd<gpio_v2_line_request>` by gpio-v2-get-line-ioctl.rst.
27 27
28 ``values`` 28 ``values``
29 The :c:type:`line_values<gpio_v2_line_valu 29 The :c:type:`line_values<gpio_v2_line_values>` to set with the ``mask`` set
30 to indicate the subset of requested lines 30 to indicate the subset of requested lines to set and ``bits`` set to
31 indicate the new value. 31 indicate the new value.
32 32
33 Description 33 Description
34 =========== 34 ===========
35 35
36 Set the values of requested output lines. 36 Set the values of requested output lines.
37 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. 38 Only the values of output lines may be set.
46 Attempting to set the value of an input line i 39 Attempting to set the value of an input line is an error (**EPERM**).
47 40
48 Return Value 41 Return Value
49 ============ 42 ============
50 43
51 On success 0. 44 On success 0.
52 45
53 On error -1 and the ``errno`` variable is set 46 On error -1 and the ``errno`` variable is set appropriately.
54 Common error codes are described in error-code 47 Common error codes are described in error-codes.rst.
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