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authorraid5atemyhomework <raid5atemyhomework@protonmail.com>2021-02-23 15:41:46 +0100
committerNicolas Goaziou <mail@nicolasgoaziou.fr>2021-02-23 15:41:46 +0100
commit0a0b0148e5fdf938c974dc6b201c00a8ceb2e273 (patch)
tree0105770063672f50508abd4cd60c0279c975278f
parent0a912b3a434c9ff9515f9036feae4d3a7075fb2f (diff)
doc: Expand sane-service-type documentation.
* doc/guix.texi (sane-service-type): Move from between documentation about geoclue, expand slightly. (sane-backends-minimal): New description. (sane-backends): New description, new example. Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>
-rw-r--r--doc/guix.texi49
1 files changed, 42 insertions, 7 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 1a467ce473..fab78f7133 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -19211,6 +19211,48 @@ tool. See @uref{https://www.freedesktop.org/software/colord/, the colord web
site} for more information.
@end deffn
+@cindex scanner access
+@defvr {Scheme Variable} sane-service-type
+This service provides access to scanners @i{via}
+@uref{http://www.sane-project.org, SANE} by installing the necessary
+udev rules. It is included in @code{%desktop-services} (@pxref{Desktop
+Services}) and relies by default on @code{sane-backends-minimal} package
+(see below) for hardware support.
+@end defvr
+
+@defvr {Scheme Variable} sane-backends-minimal
+The default package which the @code{sane-service-type} installs. It
+supports many recent scanners.
+@end defvr
+
+@defvr {Scheme Variable} sane-backends
+This package includes support for all scanners that
+@code{sane-backends-minimal} supports, plus older Hewlett-Packard
+scanners supported by @code{hplip} package. In order to use this on
+a system which relies on @code{%desktop-services}, you may use
+@code{modify-services} (@pxref{Service Reference,
+@code{modify-services}}) as illustrated below:
+
+@lisp
+(use-modules (gnu))
+(use-service-modules
+ @dots{}
+ desktop)
+(use-package-modules
+ @dots{}
+ scanner)
+
+(define %my-desktop-services
+ ;; List of desktop services that supports a broader range of scanners.
+ (modify-services %desktop-services
+ (sane-service-type _ => sane-backends)))
+
+(operating-system
+ @dots{}
+ (services %my-desktop-services)
+@end lisp
+@end defvr
+
@deffn {Scheme Procedure} geoclue-application name [#:allowed? #t] [#:system? #f] [#:users '()]
Return a configuration allowing an application to access GeoClue
location data. @var{name} is the Desktop ID of the application, without
@@ -19222,13 +19264,6 @@ this application is allowed location info access. An empty users list
means that all users are allowed.
@end deffn
-@cindex scanner access
-@deffn {Scheme Procedure} sane-service-type
-This service provides access to scanners @i{via}
-@uref{http://www.sane-project.org, SANE} by installing the necessary udev
-rules.
-@end deffn
-
@defvr {Scheme Variable} %standard-geoclue-applications
The standard list of well-known GeoClue application configurations,
granting authority to the GNOME date-and-time utility to ask for the