1 .. SPDX-License-Identifier: GPL-2.0
2
3 .. _GPIO_HANDLE_SET_LINE_VALUES_IOCTL:
4
5 *********************************
6 GPIO_HANDLE_SET_LINE_VALUES_IOCTL
7 *********************************
8 .. warning::
9 This ioctl is part of chardev_v1.rst and i
10 gpio-v2-line-set-values-ioctl.rst.
11
12 Name
13 ====
14
15 GPIO_HANDLE_SET_LINE_VALUES_IOCTL - Set the va
16
17 Synopsis
18 ========
19
20 .. c:macro:: GPIO_HANDLE_SET_LINE_VALUES_IOCTL
21
22 ``int ioctl(int handle_fd, GPIO_HANDLE_SET_LIN
23
24 Arguments
25 =========
26
27 ``handle_fd``
28 The file descriptor of the GPIO character
29 :c:type:`request.fd<gpiohandle_request>` b
30
31 ``values``
32 The :c:type:`line_values<gpiohandle_data>`
33
34 Description
35 ===========
36
37 Set the values of all requested output lines.
38
39 The values set are logical, indicating if the
40 The ``GPIOHANDLE_REQUEST_ACTIVE_LOW`` flag con
41 values (active/inactive) and physical values (
42 If ``GPIOHANDLE_REQUEST_ACTIVE_LOW`` is not s
43 inactive is low. If ``GPIOHANDLE_REQUEST_ACTIV
44 and inactive is high.
45
46 Only the values of output lines may be set.
47 Attempting to set the value of input lines is
48
49 Return Value
50 ============
51
52 On success 0.
53
54 On error -1 and the ``errno`` variable is set
55 Common error codes are described in error-code
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