nixos/profiles/hardware/ME909u-521.nix

   1 # Configuration for the ME909u-521 mini PCIe card (12d1:1573)
   2 # Beware that productId=1573 has been reused by Huawei for other cards...
   3 { pkgs, lib, config, ... }:
   4 {
   5 # Enable usb_modeswitch
   6 hardware.usbWwan.enable = true;
   7
   8 # Enable ModemManager
   9 networking.networkmanager.enable = true;
  10
  11 # https://forum.openwrt.org/t/cdc-ether-ethertype-unknown-0x0808-on-huawei-me909u-521/5509/2
  12 # https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/635
  13 environment.etc."usb_modeswitch.d".source = lib.mkForce (pkgs.writeTextDir "12d1:1573" ''
  14   # Huawei ME909u-521: select the QMI interface, which has qmi_wwan_rx_fixup()
  15   Configuration=1
  16 '');
  17
  18 # sudo mmcli --modem 0 --set-allowed-modes='2G|3G|4G' --set-preferred-mode=4G
  19
  20 environment.systemPackages = [
  21   pkgs.libqmi
  22 ];
  23
  24 }