+ /* enable rising-edge detection channels */
+ writeb(rising & 0xff, mmio + NI6527_RISING_EDGE_REG(0));
+ writeb((rising >> 8) & 0xff, mmio + NI6527_RISING_EDGE_REG(1));
+ writeb((rising >> 16) & 0xff, mmio + NI6527_RISING_EDGE_REG(2));
+
+ /* enable falling-edge detection channels */
+ writeb(falling & 0xff, mmio + NI6527_FALLING_EDGE_REG(0));
+ writeb((falling >> 8) & 0xff, mmio + NI6527_FALLING_EDGE_REG(1));
+ writeb((falling >> 16) & 0xff, mmio + NI6527_FALLING_EDGE_REG(2));
+}
+
+static int ni6527_intr_insn_config(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
+{
+ switch (data[0]) {
+ case INSN_CONFIG_CHANGE_NOTIFY:
+ /* check_insn_config_length() does not check this instruction */
+ if (insn->n != 3)
+ return -EINVAL;
+ ni6527_set_edge_detection(dev, data[1], data[2]);
+ break;
+ default: