diff --git a/devlib/target.py b/devlib/target.py
index 7d17fe2..f50ae02 100644
--- a/devlib/target.py
+++ b/devlib/target.py
@@ -1015,19 +1015,19 @@ class Target(object):
         return await self.read_value.asyn(path, kind=boolean)
 
     @asyn.asynccontextmanager
-    async def revertable_write_value(self, path, value, verify=True):
+    async def revertable_write_value(self, path, value, verify=True, as_root=True):
         orig_value = self.read_value(path)
         try:
-            await self.write_value.asyn(path, value, verify)
+            await self.write_value.asyn(path, value, verify=verify, as_root=as_root)
             yield
         finally:
-            await self.write_value.asyn(path, orig_value, verify)
+            await self.write_value.asyn(path, orig_value, verify=verify, as_root=as_root)
 
     def batch_revertable_write_value(self, kwargs_list):
         return batch_contextmanager(self.revertable_write_value, kwargs_list)
 
     @asyn.asyncf
-    async def write_value(self, path, value, verify=True):
+    async def write_value(self, path, value, verify=True, as_root=True):
         self.async_manager.track_access(
             asyn.PathAccess(namespace='target', path=path, mode='w')
         )
@@ -1059,7 +1059,7 @@ fi
         cmd = cmd.format(busybox=quote(self.busybox), path=quote(path), value=quote(value))
 
         try:
-            await self.execute.asyn(cmd, check_exit_code=True, as_root=True)
+            await self.execute.asyn(cmd, check_exit_code=True, as_root=as_root)
         except TargetCalledProcessError as e:
             if e.returncode == 10:
                 raise TargetStableError('Could not write "{value}" to {path}: {e.output}'.format(
diff --git a/doc/target.rst b/doc/target.rst
index ad641b1..cb51f82 100644
--- a/doc/target.rst
+++ b/doc/target.rst
@@ -386,7 +386,7 @@ Target
 
    Equivalent to ``Target.read_value(path, kind=devlib.utils.types.boolean)``
 
-.. method:: Target.write_value(path, value [, verify])
+.. method:: Target.write_value(path, value [, verify, as_root])
 
    Write the value to the specified path on the target. This is primarily
    intended for sysfs/procfs/debugfs etc.
@@ -397,8 +397,10 @@ Target
        it is written to make sure it has been written successfully. This due to
        some sysfs entries silently failing to set the written value without
        returning an error code.
+   :param as_root: specifies if writing requires being root. Its default value
+       is ``True``.
 
-.. method:: Target.revertable_write_value(path, value [, verify])
+.. method:: Target.revertable_write_value(path, value [, verify, as_root])
 
    Same as :meth:`Target.write_value`, but as a context manager that will write
    back the previous value on exit.