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https://github.com/NixOS/nixpkgs.git
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ea21636320
For some reason, SANE suddenly stopped recognizing my scanner recently:
| $ scanimage -L
|
| No scanners were identified. If you were expecting something different,
| check that the scanner is plugged in, turned on and detected by the
| sane-find-scanner tool (if appropriate). Please read the documentation
| which came with this software (README, FAQ, manpages).
I was able to remedy this issue by building SANE with the latest version
of the backends package from Git, by adding the following override to
~/.nixpkgs/config.nix:
| {
| packageOverrides = pkgs:
| {
| saneBackends = pkgs.saneBackendsGit;
| };
| }
43 lines
1.3 KiB
Nix
43 lines
1.3 KiB
Nix
{ stdenv, fetchurl, fetchgit, hotplugSupport ? true, libusb ? null, gt68xxFirmware ? null }:
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let
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firmware = gt68xxFirmware { inherit fetchurl; };
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in
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assert hotplugSupport -> (stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux");
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stdenv.mkDerivation {
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name = "sane-backends-1.0.23.296-gf139120";
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src = fetchgit {
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url = "http://git.debian.org/git/sane/sane-backends.git";
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rev = "f139120c72db6de98be95b52c206c2a4d8071e92";
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sha256 = "1b2fv19c8ijh9l0jjilli3j70n17wvcgpqq1nxmiby3ai6nrzk8d";
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};
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udevSupport = hotplugSupport;
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buildInputs = if libusb != null then [libusb] else [];
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postInstall = ''
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if test "$udevSupport" = "1"; then
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mkdir -p $out/etc/udev/rules.d/
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./tools/sane-desc -m udev > $out/etc/udev/rules.d/60-libsane.rules || \
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cp tools/udev/libsane.rules $out/etc/udev/rules.d/60-libsane.rules
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fi
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'';
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preInstall =
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if gt68xxFirmware != null then
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"mkdir -p \${out}/share/sane/gt68xx ; ln -s " + firmware.fw +
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" \${out}/share/sane/gt68xx/" + firmware.name
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else "";
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meta = {
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homepage = "http://www.sane-project.org/";
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description = "Scanner Access Now Easy";
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license = stdenv.lib.licenses.gpl2Plus;
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maintainers = [ stdenv.lib.maintainers.simons ];
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platforms = stdenv.lib.platforms.linux;
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};
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}
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