The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 9f5039ba440e499d85c29b1ddbc3cbc9dc90e44b Mon Sep 17 00:00:00 2001
From: Sean Young <sean@xxxxxxxx>
Date: Fri, 7 Jul 2017 18:49:18 -0300
Subject: [PATCH] media: lirc: LIRC_GET_REC_RESOLUTION should return
microseconds
Since commit e8f4818895b3 ("[media] lirc: advertise
LIRC_CAN_GET_REC_RESOLUTION and improve") lircd uses the ioctl
LIRC_GET_REC_RESOLUTION to determine the shortest pulse or space that
the hardware can detect. This breaks decoding in lirc because lircd
expects the answer in microseconds, but nanoseconds is returned.
Cc: <stable@xxxxxxxxxxxxxxx> # v2.6.36+
Reported-by: Derek <user.vdr@xxxxxxxxx>
Tested-by: Derek <user.vdr@xxxxxxxxx>
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c
index a30af91710fe..d2223c04e9ad 100644
--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -266,7 +266,7 @@ static long ir_lirc_ioctl(struct file *filep, unsigned int cmd,
if (!dev->rx_resolution)
return -ENOTTY;
- val = dev->rx_resolution;
+ val = dev->rx_resolution / 1000;
break;
case LIRC_SET_WIDEBAND_RECEIVER: