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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:51 +0000 |
commit | 6d03a247468059b0e59c821ef39e6762d4d6fc30 (patch) | |
tree | 17b9c00de2c62e68c965c742cdbc206f77a375da /Documentation/userspace-api/gpio/gpio-handle-set-line-values-ioctl.rst | |
parent | Releasing progress-linux version 6.8.12-1~progress7.99u1. (diff) | |
download | linux-6d03a247468059b0e59c821ef39e6762d4d6fc30.tar.xz linux-6d03a247468059b0e59c821ef39e6762d4d6fc30.zip |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/userspace-api/gpio/gpio-handle-set-line-values-ioctl.rst')
-rw-r--r-- | Documentation/userspace-api/gpio/gpio-handle-set-line-values-ioctl.rst | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/userspace-api/gpio/gpio-handle-set-line-values-ioctl.rst b/Documentation/userspace-api/gpio/gpio-handle-set-line-values-ioctl.rst new file mode 100644 index 0000000000..0aa05e623a --- /dev/null +++ b/Documentation/userspace-api/gpio/gpio-handle-set-line-values-ioctl.rst @@ -0,0 +1,48 @@ +.. SPDX-License-Identifier: GPL-2.0 + +.. _GPIO_HANDLE_SET_LINE_VALUES_IOCTL: + +********************************* +GPIO_HANDLE_SET_LINE_VALUES_IOCTL +********************************* +.. warning:: + This ioctl is part of chardev_v1.rst and is obsoleted by + gpio-v2-line-set-values-ioctl.rst. + +Name +==== + +GPIO_HANDLE_SET_LINE_VALUES_IOCTL - Set the values of all requested output lines. + +Synopsis +======== + +.. c:macro:: GPIO_HANDLE_SET_LINE_VALUES_IOCTL + +``int ioctl(int handle_fd, GPIO_HANDLE_SET_LINE_VALUES_IOCTL, struct gpiohandle_data *values)`` + +Arguments +========= + +``handle_fd`` + The file descriptor of the GPIO character device, as returned in the + :c:type:`request.fd<gpiohandle_request>` by gpio-get-linehandle-ioctl.rst. + +``values`` + The :c:type:`line_values<gpiohandle_data>` to set. + +Description +=========== + +Set the values of all requested output lines. + +Only the values of output lines may be set. +Attempting to set the value of input lines is an error (**EPERM**). + +Return Value +============ + +On success 0. + +On error -1 and the ``errno`` variable is set appropriately. +Common error codes are described in error-codes.rst. |