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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2016-02-08 20:25:59 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-03-03 12:28:41 +0100 |
| commit | 449c1fcd86f5077d5076a955e65c07a7c4cbbf9d (patch) | |
| tree | 9a430bdd64f68372ff995ee22e1600a57861cad2 /drivers/media/rc/nuvoton-cir.h | |
| parent | [media] soc_camera/mx3_camera.c: move to staging in preparation, for removal (diff) | |
| download | linux-449c1fcd86f5077d5076a955e65c07a7c4cbbf9d.tar.xz linux-449c1fcd86f5077d5076a955e65c07a7c4cbbf9d.zip | |
[media] media: rc: nuvoton: support reading / writing wakeup sequence via sysfs
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>
Diffstat (limited to 'drivers/media/rc/nuvoton-cir.h')
| -rw-r--r-- | drivers/media/rc/nuvoton-cir.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/rc/nuvoton-cir.h b/drivers/media/rc/nuvoton-cir.h index 4a5650dffa29..c9c98ebb19ee 100644 --- a/drivers/media/rc/nuvoton-cir.h +++ b/drivers/media/rc/nuvoton-cir.h @@ -417,3 +417,6 @@ struct nvt_dev { /* as VISTA MCE definition, valid carrier value */ #define MAX_CARRIER 60000 #define MIN_CARRIER 30000 + +/* max wakeup sequence length */ +#define WAKEUP_MAX_SIZE 65 |