Add support for DevFS

services/libs/jinux-std/src/device/mod.rs

@@ -0,0 +1,17 @@
+mod null;
+pub mod tty;
+mod zero;
+
+use crate::fs::device::{add_node, Device, DeviceId, DeviceType};
+use crate::prelude::*;
+
+/// Init the device node in fs, must be called after mounting rootfs.
+pub fn init() -> Result<()> {
+    let null = Arc::new(null::Null);
+    add_node(null, "null")?;
+    let zero = Arc::new(zero::Zero);
+    add_node(zero, "zero")?;
+    let tty = tty::get_n_tty().clone();
+    add_node(tty, "tty")?;
+    Ok(())
+}