1 .. SPDX-License-Identifier: GPL-2.0
2
3 .. _GPIO_V2_GET_LINEINFO_IOCTL:
4
5 **************************
6 GPIO_V2_GET_LINEINFO_IOCTL
7 **************************
8
9 Name
10 ====
11
12 GPIO_V2_GET_LINEINFO_IOCTL - Get the publicly
13
14 Synopsis
15 ========
16
17 .. c:macro:: GPIO_V2_GET_LINEINFO_IOCTL
18
19 ``int ioctl(int chip_fd, GPIO_V2_GET_LINEINFO_
20
21 Arguments
22 =========
23
24 ``chip_fd``
25 The file descriptor of the GPIO character
26
27 ``info``
28 The :c:type:`line_info<gpio_v2_line_info>`
29 ``offset`` field set to indicate the line
30
31 Description
32 ===========
33
34 Get the publicly available information for a l
35
36 This information is available independent of w
37
38 .. note::
39 The line info does not include the line va
40
41 The line must be requested using gpio-v2-g
42 value.
43
44 Return Value
45 ============
46
47 On success 0 and ``info`` is populated with th
48
49 On error -1 and the ``errno`` variable is set
50 Common error codes are described in error-code
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