diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc
index 31636695f2d0..ddd532f30323 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uvc
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc
@@ -74,7 +74,7 @@ Date:		Dec 2014
 KernelVersion:	4.0
 Description:	Default camera terminal descriptors
 
-		All attributes read only:
+		All attributes read only except bmControls:
 
 		========================  ====================================
 		bmControls		  bitmap specifying which controls are
@@ -99,7 +99,7 @@ Date:		Dec 2014
 KernelVersion:	4.0
 Description:	Default processing unit descriptors
 
-		All attributes read only:
+		All attributes read only except bmControls:
 
 		===============	========================================
 		iProcessing	index of string descriptor
diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c
index ffa338643cc8..5e6848420728 100644
--- a/drivers/usb/gadget/function/uvc_configfs.c
+++ b/drivers/usb/gadget/function/uvc_configfs.c
@@ -333,6 +333,64 @@ UVCG_DEFAULT_PROCESSING_ATTR(i_processing, iProcessing, 8);
 
 #undef UVCG_DEFAULT_PROCESSING_ATTR
 
+static ssize_t uvcg_default_processing_bm_controls_store(
+	struct config_item *item, const char *page, size_t len)
+{
+	struct config_group *group = to_config_group(item);
+	struct mutex *su_mutex = &group->cg_subsys->su_mutex;
+	struct uvc_processing_unit_descriptor *pd;
+	struct config_item *opts_item;
+	struct f_uvc_opts *opts;
+	u8 *bm_controls, *tmp;
+	unsigned int i;
+	int ret, n = 0;
+
+	mutex_lock(su_mutex);
+
+	opts_item = group->cg_item.ci_parent->ci_parent->ci_parent;
+	opts = to_f_uvc_opts(opts_item);
+	pd = &opts->uvc_processing;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto unlock;
+	}
+
+	ret = __uvcg_iter_item_entries(page, len, __uvcg_count_item_entries, &n,
+				       sizeof(u8));
+	if (ret)
+		goto unlock;
+
+	if (n > pd->bControlSize) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	tmp = bm_controls = kcalloc(n, sizeof(u8), GFP_KERNEL);
+	if (!bm_controls) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	ret = __uvcg_iter_item_entries(page, len, __uvcg_fill_item_entries, &tmp,
+				       sizeof(u8));
+	if (ret)
+		goto free_mem;
+
+	for (i = 0; i < n; i++)
+		pd->bmControls[i] = bm_controls[i];
+
+	ret = len;
+
+free_mem:
+	kfree(bm_controls);
+unlock:
+	mutex_unlock(&opts->lock);
+	mutex_unlock(su_mutex);
+	return ret;
+}
+
 static ssize_t uvcg_default_processing_bm_controls_show(
 	struct config_item *item, char *page)
 {
@@ -362,7 +420,7 @@ static ssize_t uvcg_default_processing_bm_controls_show(
 	return result;
 }
 
-UVC_ATTR_RO(uvcg_default_processing_, bm_controls, bmControls);
+UVC_ATTR(uvcg_default_processing_, bm_controls, bmControls);
 
 static struct configfs_attribute *uvcg_default_processing_attrs[] = {
 	&uvcg_default_processing_attr_b_unit_id,
@@ -444,6 +502,65 @@ UVCG_DEFAULT_CAMERA_ATTR(w_ocular_focal_length, wOcularFocalLength,
 
 #undef UVCG_DEFAULT_CAMERA_ATTR
 
+static ssize_t uvcg_default_camera_bm_controls_store(
+	struct config_item *item, const char *page, size_t len)
+{
+	struct config_group *group = to_config_group(item);
+	struct mutex *su_mutex = &group->cg_subsys->su_mutex;
+	struct uvc_camera_terminal_descriptor *cd;
+	struct config_item *opts_item;
+	struct f_uvc_opts *opts;
+	u8 *bm_controls, *tmp;
+	unsigned int i;
+	int ret, n = 0;
+
+	mutex_lock(su_mutex);
+
+	opts_item = group->cg_item.ci_parent->ci_parent->ci_parent->
+			ci_parent;
+	opts = to_f_uvc_opts(opts_item);
+	cd = &opts->uvc_camera_terminal;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto unlock;
+	}
+
+	ret = __uvcg_iter_item_entries(page, len, __uvcg_count_item_entries, &n,
+				       sizeof(u8));
+	if (ret)
+		goto unlock;
+
+	if (n > cd->bControlSize) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	tmp = bm_controls = kcalloc(n, sizeof(u8), GFP_KERNEL);
+	if (!bm_controls) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	ret = __uvcg_iter_item_entries(page, len, __uvcg_fill_item_entries, &tmp,
+				       sizeof(u8));
+	if (ret)
+		goto free_mem;
+
+	for (i = 0; i < n; i++)
+		cd->bmControls[i] = bm_controls[i];
+
+	ret = len;
+
+free_mem:
+	kfree(bm_controls);
+unlock:
+	mutex_unlock(&opts->lock);
+	mutex_unlock(su_mutex);
+	return ret;
+}
+
 static ssize_t uvcg_default_camera_bm_controls_show(
 	struct config_item *item, char *page)
 {
@@ -473,7 +590,7 @@ static ssize_t uvcg_default_camera_bm_controls_show(
 	return result;
 }
 
-UVC_ATTR_RO(uvcg_default_camera_, bm_controls, bmControls);
+UVC_ATTR(uvcg_default_camera_, bm_controls, bmControls);
 
 static struct configfs_attribute *uvcg_default_camera_attrs[] = {
 	&uvcg_default_camera_attr_b_terminal_id,
