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