# # Copyright (c) 2021, NXP # # SPDX-License-Identifier: Apache-2.0 # mainmenu "I2S Loopback Test" source "Kconfig.zephyr" config I2S_TEST_SEPARATE_DEVICES bool "Use two separate I2S ports for loopback" help Use separate I2S ports for transmit and receive. config I2S_TEST_USE_I2S_DIR_BOTH bool "Use I2S_DIR_BOTH value to perform RX/TX transfers" help Use the I2S_DIR_BOTH enumeration value to trigger commands in test cases involving both reception and transmission. Use of this option is essential for devices that cannot independently start and stop the RX and TX streams. config I2S_TEST_USE_GPIO_LOOPBACK bool "Use GPIO loopback" help Use wiring between the data-out and data-in pins for looping back data. This option is intended to be used for devices that do not provide the internal loopback functionality. config I2S_TEST_ALLOWED_DATA_OFFSET int "Allowed offset in received data" default 0 help Maximum allowed offset between sent and received samples. Non-zero value of this option may be needed when GPIO loopback is used.