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[RFC,4/6] system: strip the initial /dev for mdev-only /dev management

Message ID 1441747734-18730-5-git-send-email-luca@lucaceresoli.net
State Changes Requested
Headers show

Commit Message

Luca Ceresoli Sept. 8, 2015, 9:28 p.m. UTC 
When using mdev-only /dev management a static device table is needed before
mdev is activated. This is used only for a very short time and then
replaced by the dymanic table managen by mdev, so it should be very
minimalistic.

But the current default, system/device_table_dev.txt, contains way too many
devices that are useless in this contex.

Replace it with a very minimal table.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
---
 system/Config.in                      |  1 +
 system/device_table_dev_mdev_only.txt | 10 ++++++++++
 2 files changed, 11 insertions(+)
 create mode 100644 system/device_table_dev_mdev_only.txt
diff mbox

Patch

diff --git a/system/Config.in b/system/Config.in
index a10de1e..48558b1 100644
--- a/system/Config.in
+++ b/system/Config.in
@@ -147,6 +147,7 @@  config BR2_ROOTFS_DEVICE_TABLE
 
 config BR2_ROOTFS_STATIC_DEVICE_TABLE
 	string "Path to the device tables"
+	default "system/device_table_dev_mdev_only.txt" if BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV_ONLY
 	default "system/device_table_dev.txt"
 	depends on BR2_ROOTFS_DEVICE_CREATION_STATIC || BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV_ONLY
 	help
diff --git a/system/device_table_dev_mdev_only.txt b/system/device_table_dev_mdev_only.txt
new file mode 100644
index 0000000..477aaea
--- /dev/null
+++ b/system/device_table_dev_mdev_only.txt
@@ -0,0 +1,10 @@ 
+# See package/makedevs/README for details
+#
+# This device table is used only to create device files when a static
+# device configuration is used (entries in /dev are static).
+#
+# <name>	<type>	<mode>	<uid>	<gid>	<major>	<minor>	<start>	<inc>	<count>
+
+# Normal system devices
+/dev/null	c	666	0	0	1	3	0	0	-
+/dev/console	c	666	0	0	5	1	-	-	-