The APCI-3120 documentation says that the PR/PA bits should be set after the
chanlist sequence is programmed.
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/addi_apci_3120.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c
b/drivers/staging/comedi/drivers/addi_apci_3120.c
index 77499b4..f258ceb 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3120.c
@@ -286,10 +286,6 @@ static void apci3120_set_chanlist(struct comedi_device
*dev,
struct apci3120_private *devpriv = dev->private;
int i;
- /* set scan length (PR) and scan start (PA) */
- devpriv->ctrl = APCI3120_CTRL_PR(n_chan - 1) | APCI3120_CTRL_PA(0);
- outw(devpriv->ctrl, dev->iobase + APCI3120_CTRL_REG);
-
/* set chanlist for scan */
for (i = 0; i < n_chan; i++) {
unsigned int chan = CR_CHAN(chanlist[i]);
@@ -307,6 +303,10 @@ static void apci3120_set_chanlist(struct comedi_device
*dev,
}
apci3120_ai_reset_fifo(dev);
+
+ /* set scan length (PR) and scan start (PA) */
+ devpriv->ctrl = APCI3120_CTRL_PR(n_chan - 1) | APCI3120_CTRL_PA(0);
+ outw(devpriv->ctrl, dev->iobase + APCI3120_CTRL_REG);
}
#include "addi-data/hwdrv_apci3120.c"
--
2.0.3
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