default.nix

{ pkgs ? import <nixpkgs> {} }:

pkgs.stdenv.mkDerivation rec {
  name = "unbrick-ftdi";

  src = pkgs.fetchurl {
    url = "http://rtr.ca/ft232r/ft232r_prog-1.24.tar.gz";
    sha256 = "10shyjdgg66cxisqzq2ff17vgyniynjsxq2griz8jxqmr3lic43v";
  };

  postPatch = ''
    sed -i -e '/ee\.old_pid *=* 0x6001/ {
      s/0x6001/0x0/
      c ee.new_pid = 0x6001;
    }' ft232r_prog.c
  '';

  buildInputs = [ pkgs.libftdi ];

  installPhase = ''
    install -vD ft232r_prog "$out/bin/$name"
  '';
}

unbrick_ftdi.sh

#!/usr/bin/sh

cd /tmp
wget http://rtr.ca/ft232r/ft232r_prog-1.24.tar.gz
tar -xf ft232r_prog-1.24.tar.gz
cd ft232r_prog-1.24
make

sudo ./ft232r_prog --old-pid 0 --new-pid 0x6001