1 files changed, 24 insertions, 0 deletions
diff --git a/tools/make-autosuspend-rules.py b/tools/make-autosuspend-rules.py
new file mode 100755
index 0000000..b1b4cef
--- /dev/null
+++ b/tools/make-autosuspend-rules.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+# Generate autosuspend rules for devices that have been tested to work properly
+# with autosuspend by the Chromium OS team. Based on
+# https://chromium.googlesource.com/chromiumos/platform2/+/master/power_manager/udev/gen_autosuspend_rules.py
+
+import chromiumos.gen_autosuspend_rules
+
+print('# pci:v<00VENDOR>d<00DEVICE> (8 uppercase hexadecimal digits twice)')
+for entry in chromiumos.gen_autosuspend_rules.PCI_IDS:
+    vendor, device = entry.split(':')
+    vendor = int(vendor, 16)
+    device = int(device, 16)
+    print(f'pci:v{vendor:08X}d{device:08X}*')
+
+print('# usb:v<VEND>p<PROD> (4 uppercase hexadecimal digits twice)')
+for entry in chromiumos.gen_autosuspend_rules.USB_IDS:
+    vendor, product = entry.split(':')
+    vendor = int(vendor, 16)
+    product = int(product, 16)
+    print(f'usb:v{vendor:04X}p{product:04X}*')
+
+print(' ID_AUTOSUSPEND=1')