dev Utility for working with devices

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);
+  }
+}