CONFIG_SIMPLE_DUMMY_BUFFER compiles in iio_simple_dummy_buffer.c file which uses functions from industrialio-trigger.c. So, CONFIG_SIMPLE_DUMMY_BUFFER needs to select IIO_TRIGGER in order to avoid build error like this: > ERROR: "iio_trigger_notify_done" [drivers/staging/iio/iio_dummy.ko] undefined! > ERROR: "iio_triggered_buffer_postenable" [drivers/staging/iio/iio_dummy.ko] undefined! > ERROR: "iio_triggered_buffer_predisable" [drivers/staging/iio/iio_dummy.ko] undefined! > ERROR: "iio_alloc_pollfunc" [drivers/staging/iio/iio_dummy.ko] undefined! > ERROR: "iio_dealloc_pollfunc" [drivers/staging/iio/iio_dummy.ko] undefined! Cc: Arnd Bergmann <arnd@xxxxxxxx> Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx> Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxxxx> --- drivers/staging/iio/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig index fa38be0..2a15426 100644 --- a/drivers/staging/iio/Kconfig +++ b/drivers/staging/iio/Kconfig @@ -38,6 +38,7 @@ config IIO_SIMPLE_DUMMY_EVENTS config IIO_SIMPLE_DUMMY_BUFFER boolean "Buffered capture support" select IIO_BUFFER + select IIO_TRIGGER select IIO_KFIFO_BUF help Add buffered data capture to the simple dummy driver. -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
