1 files changed, 64 insertions, 2 deletions

diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c
index c1eb9ef9db08..23760652a046 100644
--- a/drivers/iio/industrialio-backend.c
+++ b/drivers/iio/industrialio-backend.c
@@ -155,11 +155,14 @@ static ssize_t iio_backend_debugfs_write_reg(struct file *file,
 	ssize_t rc;
 	int ret;
 
+	if (count >= sizeof(buf))
+		return -ENOSPC;
+
 	rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, userbuf, count);
 	if (rc < 0)
 		return rc;
 
-	buf[count] = '\0';
+	buf[rc] = '\0';
 
 	ret = sscanf(buf, "%i %i", &back->cached_reg_addr, &val);
 
@@ -720,9 +723,10 @@ EXPORT_SYMBOL_NS_GPL(iio_backend_data_size_set, "IIO_BACKEND");
  * 0 on success, negative error number on failure.
  */
 int iio_backend_oversampling_ratio_set(struct iio_backend *back,
+				       unsigned int chan,
 				       unsigned int ratio)
 {
-	return iio_backend_op_call(back, oversampling_ratio_set, ratio);
+	return iio_backend_op_call(back, oversampling_ratio_set, chan, ratio);
 }
 EXPORT_SYMBOL_NS_GPL(iio_backend_oversampling_ratio_set, "IIO_BACKEND");
 
@@ -809,6 +813,64 @@ static int __devm_iio_backend_get(struct device *dev, struct iio_backend *back)
 }
 
 /**
+ * iio_backend_filter_type_set - Set filter type
+ * @back: Backend device
+ * @type: Filter type.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+int iio_backend_filter_type_set(struct iio_backend *back,
+				enum iio_backend_filter_type type)
+{
+	if (type >= IIO_BACKEND_FILTER_TYPE_MAX)
+		return -EINVAL;
+
+	return iio_backend_op_call(back, filter_type_set, type);
+}
+EXPORT_SYMBOL_NS_GPL(iio_backend_filter_type_set, "IIO_BACKEND");
+
+/**
+ * iio_backend_interface_data_align - Perform the data alignment process.
+ * @back: Backend device
+ * @timeout_us: Timeout value in us.
+ *
+ * When activated, it initates a proccess that aligns the sample's most
+ * significant bit (MSB) based solely on the captured data, without
+ * considering any other external signals.
+ *
+ * The timeout_us value must be greater than 0.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+int iio_backend_interface_data_align(struct iio_backend *back, u32 timeout_us)
+{
+	if (!timeout_us)
+		return -EINVAL;
+
+	return iio_backend_op_call(back, interface_data_align, timeout_us);
+}
+EXPORT_SYMBOL_NS_GPL(iio_backend_interface_data_align, "IIO_BACKEND");
+
+/**
+ * iio_backend_num_lanes_set - Number of lanes enabled.
+ * @back: Backend device
+ * @num_lanes: Number of lanes.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+int iio_backend_num_lanes_set(struct iio_backend *back, unsigned int num_lanes)
+{
+	if (!num_lanes)
+		return -EINVAL;
+
+	return iio_backend_op_call(back, num_lanes_set, num_lanes);
+}
+EXPORT_SYMBOL_NS_GPL(iio_backend_num_lanes_set, "IIO_BACKEND");
+
+/**
  * iio_backend_ddr_enable - Enable interface DDR (Double Data Rate) mode
  * @back: Backend device
  *