Commit 31bebc03 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
Browse files

staging: comedi: me4000: only set SDF_DIFF when supported 



Some of the boards supported by this driver do not have differential analog
inputs. Only set the SDF_DIFF subdev_flag when the board supports it.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 14aa4789

drivers/staging/comedi/drivers/me4000.c

+3 −1
Original line number Diff line number Diff line
@@ -1284,7 +1284,9 @@ static int me4000_auto_attach(struct comedi_device *dev, 
	/* Analog Input subdevice */

	s = &dev->subdevices[0];

	s->type		= COMEDI_SUBD_AI;

	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND | SDF_DIFF;

	s->subdev_flags	= SDF_READABLE | SDF_COMMON | SDF_GROUND;

	if (board->ai_diff_nchan)

		s->subdev_flags	|= SDF_DIFF;

	s->n_chan	= board->ai_nchan;

	s->maxdata	= 0xffff;

	s->len_chanlist	= ME4000_AI_CHANNEL_LIST_COUNT;

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