This is a note to let you know that I've just added the patch titled media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: media-lirc-lirc_get_rec_resolution-should-return-microseconds.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9f5039ba440e499d85c29b1ddbc3cbc9dc90e44b Mon Sep 17 00:00:00 2001 From: Sean Young <sean@xxxxxxxx> Date: Fri, 7 Jul 2017 18:49:18 -0300 Subject: media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds From: Sean Young <sean@xxxxxxxx> commit 9f5039ba440e499d85c29b1ddbc3cbc9dc90e44b upstream. 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. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/media/rc/ir-lirc-codec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/rc/ir-lirc-codec.c +++ b/drivers/media/rc/ir-lirc-codec.c @@ -254,7 +254,7 @@ static long ir_lirc_ioctl(struct file *f return 0; case LIRC_GET_REC_RESOLUTION: - val = dev->rx_resolution; + val = dev->rx_resolution / 1000; break; case LIRC_SET_WIDEBAND_RECEIVER: Patches currently in stable-queue which might be from sean@xxxxxxxx are queue-4.4/media-lirc-lirc_get_rec_resolution-should-return-microseconds.patch