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Diffstat (limited to 'drivers/staging/comedi')
-rw-r--r--drivers/staging/comedi/drivers/s626.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 4b9c22665748..c906c9a5d944 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -580,11 +580,14 @@ static int s626_set_dac(struct comedi_device *dev,
* running after the packet has been sent to the target DAC.
*/
val = 0x0F000000; /* Continue clock after target DAC data
- * (write to non-existent trimdac). */
+ * (write to non-existent trimdac).
+ */
val |= 0x00004000; /* Address the two main dual-DAC devices
- * (TSL's chip select enables target device). */
+ * (TSL's chip select enables target device).
+ */
val |= ((u32)(chan & 1) << 15); /* Address the DAC channel
- * within the device. */
+ * within the device.
+ */
val |= (u32)dacdata; /* Include DAC setpoint data. */
return s626_send_dac(dev, val);
}