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-rw-r--r--system/usbview/README6
1 files changed, 6 insertions, 0 deletions
diff --git a/system/usbview/README b/system/usbview/README
index 320d094104..03ae2de1e8 100644
--- a/system/usbview/README
+++ b/system/usbview/README
@@ -9,3 +9,9 @@ For this program to be useful, you will need to mount the debug filesystem
debugfs /sys/kernel/debug debugfs noauto 0 0
Now a simple `mount debugfs` will make the USB info available to USBView.
+
+The debugfs root directory is accessible only to the root user by default.
+You can grant access to the USB device info (as well as the rest of the
+debugfs tree) with the "uid", "gid", and "mode" mount options. For example:
+
+ debugfs /sys/kernel/debug debugfs noauto,mode=755 0 0