MIRRORS/linux-yocto
1
0
Fork 0
mirror of git://git.yoctoproject.org/linux-yocto.git synced 2025-07-07 22:35:42 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity
00fec2a10b
linux-yocto/Documentation/firmware_class/hotplug-script
Magnus Damm 3317fad5e9 firmware: Update hotplug script 
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>
2010-08-05 13:53:34 -07:00

443 B
Raw Blame History

#!/bin/sh

Simple hotplug script sample:

Both $DEVPATH and $FIRMWARE are already provided in the environment.

HOTPLUG_FW_DIR=/usr/lib/hotplug/firmware/

if [ "$SUBSYSTEM" == "firmware" -a "$ACTION" == "add" ]; then if [ -f $HOTPLUG_FW_DIR/$FIRMWARE ]; then echo 1 > /sys/$DEVPATH/loading cat $HOTPLUG_FW_DIR/$FIRMWARE > /sys/$DEVPATH/data echo 0 > /sys/$DEVPATH/loading else echo -1 > /sys/$DEVPATH/loading fi fi