As pointed out by the kbuild test robot, the ni_atmio driver includes ni_mio_common.c which uses the helper functions in the comedi_fc module. Select the COMEDI_FC module when COMEDI_NI_ATMIO is enabled to fix the following build error: ERROR: "cfc_write_array_to_buffer" [drivers/staging/comedi/drivers/ni_atmio.ko] undefined! Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx> Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx> Cc: Ian Abbott <abbotti@xxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/staging/comedi/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index f73287e..24f3cf2 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -485,6 +485,7 @@ config COMEDI_NI_ATMIO tristate "NI AT-MIO E series ISA-PNP card support" select COMEDI_8255 select COMEDI_NI_TIO + select COMEDI_FC ---help--- Enable support for National Instruments AT-MIO E series cards National Instruments AT-MIO-16E-1 (ni_atmio), -- 1.8.3.2 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel