1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index 433de5ea9b02..f71b47334149 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -122,6 +122,18 @@ void serdev_device_write_wakeup(struct serdev_device *serdev)
 }
 EXPORT_SYMBOL_GPL(serdev_device_write_wakeup);
 
+int serdev_device_write_buf(struct serdev_device *serdev,
+                            const unsigned char *buf, size_t count)
+{
+        struct serdev_controller *ctrl = serdev->ctrl;
+
+        if (!ctrl || !ctrl->ops->write_buf)
+                return -EINVAL;
+
+        return ctrl->ops->write_buf(ctrl, buf, count);
+}
+EXPORT_SYMBOL_GPL(serdev_device_write_buf);
+
 int serdev_device_write(struct serdev_device *serdev,
                         const unsigned char *buf, size_t count,
                         unsigned long timeout)