diff --git a/base/scripts/rc.tb b/base/scripts/rc.tb
index 9e580ad..2976af5 100644
--- a/base/scripts/rc.tb
+++ b/base/scripts/rc.tb
@@ -1,3 +1,4 @@
 mkalias pctl base:/bin/pctl
 mkalias tb base:/bin/tb
 mkalias fs base:/bin/fs
+mkalias dev base:/bin/dev
diff --git a/user/dev/.gitignore b/user/dev/.gitignore
new file mode 100644
index 0000000..7bb87bc
--- /dev/null
+++ b/user/dev/.gitignore
@@ -0,0 +1,2 @@
+*.o
+dev
diff --git a/user/dev/Makefile b/user/dev/Makefile
new file mode 100644
index 0000000..29b4dd4
--- /dev/null
+++ b/user/dev/Makefile
@@ -0,0 +1,24 @@
+include $(ROOT)/mk/grabsrc.mk
+include ../Makefile.inc
+
+.PHONY: all clean
+
+TARGET := dev
+
+LDFLAGS += -L$(ROOT)/ulib -l:libulib.a
+
+SRCFILES := $(call GRABSRC, .)
+CFILES := $(call GET_CFILES, $(SRCFILES))
+OBJ := $(call GET_OBJ, $(SRCFILES))
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+all: $(TARGET)
+
+$(TARGET): $(OBJ)
+	$(LD) $^ $(LDFLAGS) -o $@
+	echo $$(realpath $(TARGET)) >> $(FILES)
+
+clean:
+	rm -f $(OBJ) $(TARGET)
diff --git a/user/dev/ls.c b/user/dev/ls.c
new file mode 100644
index 0000000..9471134
--- /dev/null
+++ b/user/dev/ls.c
@@ -0,0 +1,20 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <ulib.h>
+
+void dev_ls(void) {
+  size_t ndevs = devctl(NULL, DEVCTL_DEVLS_SZ, NULL, 0, 0);
+  uprintf("TOTAL: %zu\n", ndevs);
+
+  uprintf("%-20s %-10s\n", "DEVICE", "FUNCTIONS");
+
+  for (size_t i = 0; i < 0x100; i++) {
+    DevStat devstat; ZERO(&devstat);
+    devctl(NULL, DEVCTL_DEVLS_STAT, (uint8_t *)&devstat, i, 0);
+
+    if (!devstat.present)
+      continue;
+
+    uprintf("%-20s %-10zu\n", devstat.name, devstat.nfns);
+  }
+}
diff --git a/user/dev/main.c b/user/dev/main.c
new file mode 100644
index 0000000..49f9cee
--- /dev/null
+++ b/user/dev/main.c
@@ -0,0 +1,24 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <ulib.h>
+
+#define CMDS(X)                 \
+  X(ls)
+
+void main(void) {
+  if (argslen() == 0) {
+    return;
+  }
+
+  char *cmd = args()[0];
+
+  #define X(name) if (string_strcmp(cmd, #name) == 0) { \
+    extern void dev_ ## name(void); \
+    dev_ ## name(); \
+    return; \
+  }
+  CMDS(X)
+  #undef X
+
+  uprintf("dev: unknown command %s\n", cmd);
+}