132a0a0daSKent Gibson.. SPDX-License-Identifier: GPL-2.0 232a0a0daSKent Gibson 332a0a0daSKent Gibson.. _GPIO_V2_LINE_SET_VALUES_IOCTL: 432a0a0daSKent Gibson 532a0a0daSKent Gibson***************************** 632a0a0daSKent GibsonGPIO_V2_LINE_SET_VALUES_IOCTL 732a0a0daSKent Gibson***************************** 832a0a0daSKent Gibson 932a0a0daSKent GibsonName 1032a0a0daSKent Gibson==== 1132a0a0daSKent Gibson 1232a0a0daSKent GibsonGPIO_V2_LINE_SET_VALUES_IOCTL - Set the values of requested output lines. 1332a0a0daSKent Gibson 1432a0a0daSKent GibsonSynopsis 1532a0a0daSKent Gibson======== 1632a0a0daSKent Gibson 1732a0a0daSKent Gibson.. c:macro:: GPIO_V2_LINE_SET_VALUES_IOCTL 1832a0a0daSKent Gibson 1932a0a0daSKent Gibson``int ioctl(int req_fd, GPIO_V2_LINE_SET_VALUES_IOCTL, struct gpio_v2_line_values *values)`` 2032a0a0daSKent Gibson 2132a0a0daSKent GibsonArguments 2232a0a0daSKent Gibson========= 2332a0a0daSKent Gibson 2432a0a0daSKent Gibson``req_fd`` 2532a0a0daSKent Gibson The file descriptor of the GPIO character device, as returned in the 2632a0a0daSKent Gibson :c:type:`request.fd<gpio_v2_line_request>` by gpio-v2-get-line-ioctl.rst. 2732a0a0daSKent Gibson 2832a0a0daSKent Gibson``values`` 2932a0a0daSKent Gibson The :c:type:`line_values<gpio_v2_line_values>` to set with the ``mask`` set 3032a0a0daSKent Gibson to indicate the subset of requested lines to set and ``bits`` set to 3132a0a0daSKent Gibson indicate the new value. 3232a0a0daSKent Gibson 3332a0a0daSKent GibsonDescription 3432a0a0daSKent Gibson=========== 3532a0a0daSKent Gibson 3632a0a0daSKent GibsonSet the values of requested output lines. 3732a0a0daSKent Gibson 38*5ca84d41SKent GibsonThe values set are logical, indicating if the line is to be active or inactive. 39*5ca84d41SKent GibsonThe ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` flag controls the mapping between logical 40*5ca84d41SKent Gibsonvalues (active/inactive) and physical values (high/low). 41*5ca84d41SKent GibsonIf ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` is not set then active is high and inactive 42*5ca84d41SKent Gibsonis low. If ``GPIO_V2_LINE_FLAG_ACTIVE_LOW`` is set then active is low and 43*5ca84d41SKent Gibsoninactive is high. 44*5ca84d41SKent Gibson 4532a0a0daSKent GibsonOnly the values of output lines may be set. 4632a0a0daSKent GibsonAttempting to set the value of an input line is an error (**EPERM**). 4732a0a0daSKent Gibson 4832a0a0daSKent GibsonReturn Value 4932a0a0daSKent Gibson============ 5032a0a0daSKent Gibson 5132a0a0daSKent GibsonOn success 0. 5232a0a0daSKent Gibson 5332a0a0daSKent GibsonOn error -1 and the ``errno`` variable is set appropriately. 5432a0a0daSKent GibsonCommon error codes are described in error-codes.rst. 55