diff --git a/general/overlay/etc/profile b/general/overlay/etc/profile
index 59dc712a..72ab6a00 100644
--- a/general/overlay/etc/profile
+++ b/general/overlay/etc/profile
@@ -49,6 +49,17 @@ show_wlan() {
 	grep -r '$1..=' /etc/wireless | cut -d '"' -f 4 | sort | grep -e $(fw_printenv -n soc) -e generic
 }
 
+switch_debug() {
+	[ "$1" = "on" ] && action='+' report='enabled' || action='-' report='disabled'
+	mount | grep -q 'debugfs' || mount -t debugfs none /sys/kernel/debug
+	echo "${action}p" > /sys/kernel/debug/dynamic_debug/control
+	for entry in mmc_core avpu squashfs mtdblock; do
+		echo "module $entry -p" > /sys/kernel/debug/dynamic_debug/control
+	done
+	echo "file fs/sysfs/file.c -p" > /sys/kernel/debug/dynamic_debug/control
+	echo "Dynamic debug for all files has been $report."
+}
+
 # Source configuration files from /etc/profile.d
 for i in /etc/profile.d/*.sh; do
 	[ -r "$i" ] && . $i