[media] media: rc: nuvoton: support reading / writing wakeup sequence via sysfs

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This patch adds a binary attribute /sys/class/rc/rc?/wakeup_data which
allows to read / write the wakeup sequence.

In combination with the core extension for exposing the most recent raw
packet this allows to easily define and set a wakeup sequence.

At least on my Zotac CI321 the BIOS resets the wakeup sequence at each boot
to a factory default. Therefore I use a udev rule
SUBSYSTEM=="rc", DRIVERS=="nuvoton-cir", ACTION=="add", RUN+="<script>"
with the script basically doing
cat <stored wakeup sequence> >/sys${DEVPATH}/wakeup_data

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

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Heiner Kallweit 2016-02-08 17:25:59 -02:00 • committed by Mauro Carvalho Chehab

parent 5ed08a8649

commit 449c1fcd86

2 changed files with 88 additions and 0 deletions

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85

drivers/media/rc/nuvoton-cir.c

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3

drivers/media/rc/nuvoton-cir.h

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