[PATCH 5/8] staging: comedi: aio_iiro_16: read intial state of the digital outputs

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

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/staging/comedi/drivers/aio_iiro_16.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c
index 96ea174..8cd5f11 100644
--- a/drivers/staging/comedi/drivers/aio_iiro_16.c
+++ b/drivers/staging/comedi/drivers/aio_iiro_16.c
@@ -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;
-- 
2.0.3

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