Thanks to the MODALIAS line at the beginning of mdev.conf, mdev supports module auto probing on hotplug.
However, this does not work for cold plugged modules (i.e. modules for devices that were probed before mdev is added as hotplug handler). Running mdev -s to replay hotplug events does not work in that case. Let's manually modprobe all modules in the rootfs. Taken from: - https://github.com/buildroot/buildroot/commit/07f46c2b6daec44a6176039c90be67e66c4c2e42 - https://github.com/buildroot/buildroot/commit/b4fc5a180c81689a982d5c595844331684c14f51 We need xargs to support zero termination of args so let's enable this configuration in the fragment for mdev. Signed-off-by: Quentin Schulz <[email protected]> --- meta/recipes-core/busybox/busybox/mdev.cfg | 2 ++ meta/recipes-core/busybox/files/mdev | 1 + 2 files changed, 3 insertions(+) diff --git a/meta/recipes-core/busybox/busybox/mdev.cfg b/meta/recipes-core/busybox/busybox/mdev.cfg index 6aefe90e43..0d60fc9560 100644 --- a/meta/recipes-core/busybox/busybox/mdev.cfg +++ b/meta/recipes-core/busybox/busybox/mdev.cfg @@ -9,3 +9,5 @@ CONFIG_SETSID=y CONFIG_CTTYHACK=y CONFIG_FEATURE_SHADOWPASSWDS=y + +CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM=y diff --git a/meta/recipes-core/busybox/files/mdev b/meta/recipes-core/busybox/files/mdev index 8c9c06e96c..165b275256 100755 --- a/meta/recipes-core/busybox/files/mdev +++ b/meta/recipes-core/busybox/files/mdev @@ -9,6 +9,7 @@ touch /dev/mdev.seq #sysctl -w kernel.hotplug=/sbin/mdev echo "/sbin/mdev" > /proc/sys/kernel/hotplug mdev -s +find /sys/ -name modalias -print0 | xargs -0 sort -u -z | xargs -0 modprobe -abq # # We might have mounted something over /dev, see if /dev/initctl is there. -- 2.14.1 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
