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authorLudovic Courtès <ludo@gnu.org>2014-11-11 22:42:15 +0100
committerLudovic Courtès <ludo@gnu.org>2014-11-11 22:42:39 +0100
commitf34c56be3a53c10d9a267331a0a6119c79c815a0 (patch)
treed227f6eeb076321f5e26ef62a4965505e2ad3098 /gnu/build
parent1306b0b003a557105d3b27e44052db217c7283d3 (diff)
downloadguix-f34c56be3a53c10d9a267331a0a6119c79c815a0.tar
guix-f34c56be3a53c10d9a267331a0a6119c79c815a0.tar.gz
activation: Set the firmware search path.
* gnu/build/activation.scm (activate-firmware): New procedure. * gnu/system.scm (<operating-system>)[firmware]: New field. (directory-union): New procedure. (%base-firmware): New variable. (operating-system-activation-script): Use 'directory-union', and call 'activate-firmware'. * doc/guix.texi (operating-system Reference): Document 'firmware'.
Diffstat (limited to 'gnu/build')
-rw-r--r--gnu/build/activation.scm10
1 files changed, 10 insertions, 0 deletions
diff --git a/gnu/build/activation.scm b/gnu/build/activation.scm
index 142ed8f693..3eebb71dfc 100644
--- a/gnu/build/activation.scm
+++ b/gnu/build/activation.scm
@@ -28,6 +28,7 @@
activate-setuid-programs
activate-/bin/sh
activate-modprobe
+ activate-firmware
activate-current-system))
;;; Commentary:
@@ -259,6 +260,15 @@ copy SOURCE to TARGET."
(lambda (port)
(display modprobe port))))
+(define (activate-firmware directory)
+ "Tell the kernel to look for device firmware under DIRECTORY. This
+mechanism bypasses udev: it allows Linux to handle firmware loading directly
+by itself, without having to resort to a \"user helper\"."
+ (call-with-output-file "/sys/module/firmware_class/parameters/path"
+ (lambda (port)
+ (display directory port))))
+
+
(define %current-system
;; The system that is current (a symlink.) This is not necessarily the same
;; as the system we booted (aka. /run/booted-system) because we can re-build