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firmware: Update hotplug script

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Update the in-kernel hotplug example script to work
properly with recent kernels. Without this fix the
script may load the firmware twice - both at "add"
and "remove" time.

The second load only triggers in the case when multiple
firmware images are used. A good example is the b43
driver which does not work properly without this fix.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Magnus Damm 2010-06-25 17:55:11 +09:00 committed by Greg Kroah-Hartman
parent 737a3bb941
commit 3317fad5e9
1 changed files with 9 additions and 8 deletions
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17
Documentation/firmware_class/hotplug-script
View file

@ -6,11 +6,12 @@
HOTPLUG_FW_DIR=/usr/lib/hotplug/firmware/ HOTPLUG_FW_DIR=/usr/lib/hotplug/firmware/
echo 1 > /sys/$DEVPATH/loading if [ "$SUBSYSTEM" == "firmware" -a "$ACTION" == "add" ]; then
cat $HOTPLUG_FW_DIR/$FIRMWARE > /sys/$DEVPATH/data if [ -f $HOTPLUG_FW_DIR/$FIRMWARE ]; then
echo 0 > /sys/$DEVPATH/loading echo 1 > /sys/$DEVPATH/loading
cat $HOTPLUG_FW_DIR/$FIRMWARE > /sys/$DEVPATH/data
# To cancel the load in case of error: echo 0 > /sys/$DEVPATH/loading
# else
# echo -1 > /sys/$DEVPATH/loading echo -1 > /sys/$DEVPATH/loading
# fi
fi