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Diffstat (limited to 'gnu/packages')
| -rw-r--r-- | gnu/packages/hardware.scm | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gnu/packages/hardware.scm b/gnu/packages/hardware.scm new file mode 100644 index 0000000000..d3a99af358 --- /dev/null +++ b/gnu/packages/hardware.scm @@ -0,0 +1,75 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr> +;;; +;;; This file is part of GNU Guix. +;;; +;;; GNU Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; GNU Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. + +(define-module (gnu packages hardware) + #:use-module (gnu packages compression) + #:use-module (gnu packages glib) + #:use-module (gnu packages libusb) + #:use-module (gnu packages linux) + #:use-module (gnu packages pkg-config) + #:use-module (gnu packages xdisorg) + #:use-module (gnu packages xorg) + #:use-module (guix build-system gnu) + #:use-module (guix download) + #:use-module ((guix licenses) #:prefix license:) + #:use-module (guix packages)) + +;; This is a module for packages related to physical hardware that don't (yet) +;; have a more specific home like gps.scm, security-token.scm, &c. + +(define-public ddcutil + (package + (name "ddcutil") + (version "0.9.1") + (source + (origin + (method url-fetch) + (uri (string-append "https://www.ddcutil.com/tarballs/" + name "-" version ".tar.gz")) + (sha256 + (base32 "1b4bm3zhk5vnad6fxf0mn8nrlj3fngifl7nzxgxw0n56hlv7ccv0")))) + (build-system gnu-build-system) + (native-inputs + `(("pkg-config" ,pkg-config))) + (inputs + `(("eudev" ,eudev) + ("glib" ,glib) + ("libdrm" ,libdrm) ; enhanced diagnostics + ("libusb" ,libusb) ; support USB monitors + ("libx11" ,libx11) ; enhanced diagnostics + ("libxrandr" ,libxrandr) + ("zlib" ,zlib))) + (home-page "https://www.ddcutil.com/") + (synopsis "Control external monitor settings") + (description + "ddcutil can query and modify most external monitors' settings, such as +brightness, colour levels, and input sources. Generally speaking, any setting +that can be changed by pressing buttons on the monitor can be modified by +ddcutil. + +ddcutil communicates directly with monitors implementing the Monitor Control +Command Set (@dfn{MCCS}). It usually does so through the the Display Data +Channel Command Interface (@dfn{DDC/CI}) protocol on the I2C bus, but can also +communicate over USB as per the USB Monitor Control Class Specification. + +One particular use case is in colour profile management. Monitor calibration +is relative to the monitor colour settings currently in effect, e.g. red gain. +ddcutil allows colour-related settings to be saved at the time a monitor is +calibrated, and restored when the calibration is applied.") + (license (list license:bsd-3 ; FindDDCUtil.cmake + license:gpl2+)))) ; everything else |