[PATCH 8/9] staging: comedi: ni_usb6501: add ni6501_cnt_insn_write()

Luca Ellero luca.ellero at brickedbrain.com
Mon Sep 15 12:59:38 UTC 2014


Add function for writing to counter subdevice.

Signed-off-by: Luca Ellero <luca.ellero at brickedbrain.com>
---
 drivers/staging/comedi/drivers/ni_usb6501.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
index 71631a7..c33d857 100644
--- a/drivers/staging/comedi/drivers/ni_usb6501.c
+++ b/drivers/staging/comedi/drivers/ni_usb6501.c
@@ -484,6 +484,20 @@ static int ni6501_cnt_insn_read(struct comedi_device *dev,
 	return insn->n;
 }
 
+static int ni6501_cnt_insn_write(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
+{
+	int ret;
+
+	ret = ni6501_counter_command(dev, WRITE_COUNTER, data);
+	if (ret)
+		return ret;
+
+	return insn->n;
+}
+
 static int ni6501_alloc_usb_buffers(struct comedi_device *dev)
 {
 	struct ni6501_private *devpriv = dev->private;
-- 
1.7.10.4



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