From 18d2a343c7bb15f05293ea474ec572b1b2cd333e Mon Sep 17 00:00:00 2001
From: Douglas Raillard <douglas.raillard@arm.com>
Date: Wed, 18 Oct 2023 18:35:23 +0100
Subject: [PATCH] target: Add Target.read_systcl()

Add a getter to query systcl values.
---
 devlib/target.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/devlib/target.py b/devlib/target.py
index 3f2f03f..3f66ede 100644
--- a/devlib/target.py
+++ b/devlib/target.py
@@ -1178,6 +1178,17 @@ fi
         await self.execute.asyn('rm -rf -- {}'.format(quote(path)), as_root=as_root)
 
     # misc
+    @asyn.asyncf
+    async def read_sysctl(self, parameter):
+        """
+        Returns the value of the given sysctl parameter as a string.
+        """
+        path = target.path.join('proc', 'sys', *parameter.split('.'))
+        try:
+            return await self.read_value.asyn(path)
+        except FileNotFoundError as e:
+            raise ValueError(f'systcl parameter {parameter} was not found: {e}')
+
     def core_cpus(self, core):
         return [i for i, c in enumerate(self.core_names) if c == core]