Hi,
On 21-01-16 00:43, Dan MacDonald wrote:
Hi Hans
Thanks for your reply but I've not got much further.
I don't have a /sys/class/ir but I do have /sys/class/lirc so maybe thats
it?
No I believe that that is wrong.
> However, nowhere within there can I find a file containing protocol
Maybe it is under /sys/class/rc (for remote control) ?
I do not remember where it is, but this is doing in kernel protocol
decoding, so it is not using the lirc framework.
options:
[root@bandana lirc]# cd /sys/class/lirc/
[root@bandana lirc]# ls
lirc0
[root@bandana lirc]# cd lirc0
[root@bandana lirc0]# ls
dev device power subsystem uevent
[root@bandana lirc0]# cat dev
241:0
[root@bandana lirc0]# cat device
cat: device: Is a directory
[root@bandana lirc0]# cat power/
cat: power/: Is a directory
[root@bandana lirc0]# cat subsystem
cat: subsystem: Is a directory
[root@bandana lirc0]# cat uevent
MAJOR=241
MINOR=0
DEVNAME=lirc0
What kernel are you running on your BPi? I presume you have access to one?
Have you successfully used the IR on the BPi under 4.4?
I've successfully used the IR on various boards using recent kernels,
I've not specifically tested 4.4, nor am I sure I've specifically tested
the BPi. I'm sure you need to set the protocols though, and use a
tool which knows how to read events from /dev/input/event# nodes, like
e.g. evemu's evemu-record when using IR with upstream kernels.
Regards,
Hans
Thanks for your help!
On Wed, Jan 20, 2016 at 9:37 AM, Hans de Goede <[email protected]> wrote:
Hi,
On 20-01-16 10:23, Dan MacDonald wrote:
Has anyone had any success using IR on the BPi under 4.4.0 or another
recent kernel? I was trying last night without any luck.
To get the kernel to recognise it, I first had to
modprobe sunxi-cir
After loading that, the kernel seems to create (at least) two new IR input
devices, /dev/input/event1 and /dev/input/event2 IIRC (I'm not logged into
my BPi right now to checkbut I think that's correct) - one is just
labelled
sunxi-ir and the other was sunxi-ir mouse and keyboard or something. I got
IR working with on the BPi with my remote under the sunxi 3.x kernel but
there was only one IR input device then, /dev/input/event0.
I've been testing /dev/input/event1 and /dev/input/event2 using the
keybinding app but I've yet to get any input. Has anyone had more luck? Is
there a better way to test it than using keybinding?
You need to first set a ir-protocol, from the top of my head
go to /sys/class/ir/ir0 and then do "cat protocols" and then
echo "one-of-them" > protocols.
If you do not have the right protocol listed make sure to load the kernel
module.
Note as said this is all from the top of my head, so to path / filenames
may be a bit different then what I'm typing here.
Once you've set the right proto (typically nec, sometimes rc4) then you
can test using e.g. evemu-record on the input node. AFAIK you should
get only one input node related to the ir btw..., evemu-record will
print the human friendly names of all nodes which should explain which
node is what.
Regards,
Hans
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