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branch master updated: gnu: ddcutil: Install udev rules at their expecte
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guix-commits |
Subject: |
branch master updated: gnu: ddcutil: Install udev rules at their expected location. |
Date: |
Wed, 28 Dec 2022 23:15:32 -0500 |
This is an automated email from the git hooks/post-receive script.
apteryx pushed a commit to branch master
in repository guix.
The following commit(s) were added to refs/heads/master by this push:
new 72875031a4 gnu: ddcutil: Install udev rules at their expected location.
72875031a4 is described below
commit 72875031a44673e7867ac7b1e8f17feab8d6fa45
Author: Maxim Cournoyer <maxim.cournoyer@gmail.com>
AuthorDate: Wed Dec 28 22:55:00 2022 -0500
gnu: ddcutil: Install udev rules at their expected location.
* gnu/packages/hardware.scm (ddcutil) [arguments]: New field.
[description]: Document how the included udev rules can be used.
---
gnu/packages/hardware.scm | 28 ++++++++++++++++++++++++----
1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/gnu/packages/hardware.scm b/gnu/packages/hardware.scm
index f73896460b..81f38d069b 100644
--- a/gnu/packages/hardware.scm
+++ b/gnu/packages/hardware.scm
@@ -491,6 +491,22 @@ RGB animations.")
(sha256
(base32 "0hm0cm4m4hk1jjy7kddg613mynvwlii3kp8al0j9v3c6mcx3p4mx"))))
(build-system gnu-build-system)
+ (arguments
+ (list
+ #:phases
+ #~(modify-phases %standard-phases
+ (add-after 'install 'install-udev-rules
+ (lambda* (#:key outputs #:allow-other-keys)
+ ;; Move the udev rules to their expected location in Guix
+ ;; System, so they can be more easily used.
+ (let ((rules.d (string-append #$output "/lib/udev/rules.d")))
+ (mkdir-p (dirname rules.d))
+ (rename-file (string-append #$output "/share/ddcutil/data")
+ rules.d)
+ ;; Patch a reference to the ddcutil command.
+ (substitute* (string-append rules.d "/45-ddcutil-usb.rules")
+ (("/usr/bin/ddcutil")
+ (search-input-file outputs "bin/ddcutil")))))))))
(native-inputs
(list pkg-config))
(inputs
@@ -498,9 +514,9 @@ RGB animations.")
glib
kmod
i2c-tools
- libdrm ; enhanced diagnostics
- libusb ; support USB monitors
- libx11 ; enhanced diagnostics
+ libdrm ;enhanced diagnostics
+ libusb ;support USB monitors
+ libx11 ;enhanced diagnostics
libxrandr
zlib))
(home-page "https://www.ddcutil.com/")
@@ -519,7 +535,11 @@ 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.")
+calibrated, and restored when the calibration is applied.
+
+This package includes udev rules that can be used by adding this package to
+the @code{rules} field of the @code{udev-configuration} record. It gives
+read/write access to i2c devices to users in the @samp{i2c} group.")
(license (list license:bsd-3 ; FindDDCUtil.cmake
license:gpl2+)))) ; everything else
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