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 <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
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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