Improve path readability check

On modern system e.g. render nodes are made accessible via the udev
uaccess functionality, which adds the logged in user to the ACL of the
device. This means just checking for user and group is bound to give
false positives. Instead simply try to open the device as a test and
only if that fails try to determine the cause based on user/groups.

Author: sjoerdsimons

amdsmi_cli/amdsmi_helpers.py

@@ -1252,6 +1252,14 @@ def _has_read_access(self, path: str) -> Tuple[bool, Optional[int], Optional[str
         if os.geteuid() == 0:
             return True, None, None
 
+        # Try to open the file in read mode as the user could have access
+        # through ACLs
+        try:
+            open(path, "rb")
+            return True, None, None
+        except:
+            pass
+
         mode = st.st_mode
         uid = st.st_uid
         gid = st.st_gid