Merge branch 't2564-lcd' of github.com:c-po/vyos-1x into current

* 't2564-lcd' of github.com:c-po/vyos-1x:
  lcd: T2564: flatten CLI interface
  system display: T2564: Added test model
  system display: T2564: Dictionary code update
  system display: T2564: Conf files to /run
  system display: T2564: Changed "duration" to "time"
  system display: T2564: py code cleanup
  system display: T2564: Replace "config (enabled|disabled)" with "display disabled"
  system display: T2564: Lowercase model names
  system display: T2564 Extend VyOS to support appliance LCDs

1 files changed, 12 insertions, 0 deletions

diff --git a/python/vyos/util.py b/python/vyos/util.py
index 7078762df..c07fef599 100644
--- a/python/vyos/util.py
+++ b/python/vyos/util.py
@@ -661,3 +661,15 @@ def check_kmod(k_mod):
         if not os.path.exists(f'/sys/module/{module}'):
             if call(f'modprobe {module}') != 0:
                 raise ConfigError(f'Loading Kernel module {module} failed')
+
+def find_device_file(device):
+    """ Recurively search /dev for the given device file and return its full path.
+        If no device file was found 'None' is returned """
+    from fnmatch import fnmatch
+
+    for root, dirs, files in os.walk('/dev'):
+        for basename in files:
+            if fnmatch(basename, device):
+                return os.path.join(root, basename)
+
+    return None