epkowa: add plugin for DS-30 (#440864)

        description = "iscan GT-1500 for " + passthru.hw;

      };

    };

    ds30 = stdenv.mkDerivation rec {

      name = "iscan-ds-30-bundle";

      version = "2.30.4";

      src = fetchurl {

        urls = [

          "https://download2.ebz.epson.net/iscan/plugin/ds-30/rpm/x64/iscan-ds-30-bundle-${version}.x64.rpm.tar.gz"

          "https://web.archive.org/web/https://download2.ebz.epson.net/iscan/plugin/ds-30/rpm/x64/iscan-ds-30-bundle-${version}.x64.rpm.tar.gz"

        ];

        sha256 = "0d5ef9b83999c56c14bd17ca63537f63ad4f0d70056870dc00888af1b36f4153";

      };

      nativeBuildInputs = [

        autoPatchelfHook

        rpm

      ];

      installPhase = ''

        ${rpm}/bin/rpm2cpio plugins/iscan-plugin-ds-30-*.x86_64.rpm | ${cpio}/bin/cpio -idmv

        mkdir $out

        cp -r usr/share $out

        cp -r usr/lib64 $out/lib

        mv $out/lib/iscan $out/lib/esci

        mkdir $out/share/esci

      '';

      passthru = {

        registrationCommand = ''

          $registry --add interpreter usb 0x04b8 0x0147 "$plugin/lib/esci/libiscan-plugin-ds-30.so"

        '';

        hw = "DS-30";

      };

      meta = common_meta // {

        description = "Plugin to support " + passthru.hw + " scanner in sane";

      };

    };

    network = stdenv.mkDerivation rec {

      pname = "iscan-nt-bundle";

      # for the version, look for the driver of XP-750 in the search page