This driver makes use of triggered buffers, but does not select the required modules. Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'. Fixes: 885b9790c25a ("drivers:iio:dac:ad5766.c: Add trigger buffer") Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx> --- drivers/iio/dac/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index 9d4600ce0427..bb6cb9af9ed9 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -254,6 +254,8 @@ config AD5764 config AD5766 tristate "Analog Devices AD5766/AD5767 DAC driver" depends on SPI_MASTER + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say yes here to build support for Analog Devices AD5766, AD5767 Digital to Analog Converter. -- 2.43.0