Commit 21f1801f authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: aio_iiro_16: read intial state of the digital outputs 



The relay registers are readable. Read them during the attach to get
the initial state of the digital outputs.

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 9cdb432c

drivers/staging/comedi/drivers/aio_iiro_16.c

+4 −0
Original line number Diff line number Diff line
@@ -85,6 +85,10 @@ static int aio_iiro_16_attach(struct comedi_device *dev, 
	s->range_table	= &range_digital;

	s->insn_bits	= aio_iiro_16_do_insn_bits;



	/* get the initial state of the relays */

	s->state = inb(dev->iobase + AIO_IIRO_16_RELAY_0_7) |

		   (inb(dev->iobase + AIO_IIRO_16_RELAY_8_15) << 8);



	/* Digital Input subdevice */

	s = &dev->subdevices[1];

	s->type		= COMEDI_SUBD_DI;