LIRC and BeagleBone Black

[Sergio N]

Hello all. This is my first post here after digging a lot about LIRC. 

I just got my BBB and I'm using the original SO version. 

# uname -a

Linux beaglebone 3.8.13-bone47 #1 SMP Fri Apr 11 01:36:09 UTC 2014 armv7l GNU/Linux

 lsb_release -a

No LSB modules are available.

Distributor ID: Debian

Description:    Debian GNU/Linux 7.4 (wheezy)

Release:        7.4

Codename:       wheezy

What I need it to send IR commands to a IR led on pin9_14.

My questions: 

1. is it necessary to recompile the kernel to have LIRC working or it's enough to apt-get install lirc? 
   
2. once LIRC is installed how and where I tell LIRC to send it pin0_14? 
   
3. Do I have to enable UART4 for doing so? 
   

Resuming, I saw some node modules for working with LIRC, but could not make LIRC to work. 

My need is simply be able to send commands (power on/off, vol up/down, etc) to my Samsung TV. 

Best regards and thanks in advance. 

[Rene B.]

Firstly, yes, you have to recompile your kernel on BBB to get LIRC working. Here's a nice howto to get your IR sending to work on BBB: https://thenetworkcable.wordpress.com/2014/10/18/compiling-lirc_bbb-for-ir-control-on-a-beagle-bone-black/

Cheers,

Rene

[Sergio N]

Thanks, Rene.

I did it and succesfully rebooted BBB.

However, when I tried to modprob, I got:

root@beaglebone:~# modprobe lirc_bbb

libkmod: ERROR ../libkmod/libkmod.c:554 kmod_search_moddep: could not open moddep file '/lib/modules/3.8.13-bone50-GL/modules.dep.bin'

Bellow you see the contents of '/lib/modules/3.8.13-bone50-GL/

root@beaglebone:/lib/modules/3.8.13-bone50# ls -la

total 1252

drwxr-xr-x 3 root root   4096 Feb 13 01:05 .

drwxr-xr-x 3 root root   4096 Feb 12 18:25 ..

lrwxrwxrwx 1 root root     28 Feb 13 01:05 build -> /usr/src/linux-3.8.13-bone50

drwxr-xr-x 9 root root   4096 May 13  2014 kernel

-rw-r--r-- 1 root root 327125 May 15  2014 modules.alias

-rw-r--r-- 1 root root 347363 May 15  2014 modules.alias.bin

-rw-r--r-- 1 root root  14230 May 13  2014 modules.builtin

-rw-r--r-- 1 root root  16918 May 15  2014 modules.builtin.bin

-rw-r--r-- 1 root root  89181 May 15  2014 modules.dep

-rw-r--r-- 1 root root 143882 May 15  2014 modules.dep.bin

-rw-r--r-- 1 root root    140 May 15  2014 modules.devname

-rw-r--r-- 1 root root  50010 May 13  2014 modules.order

-rw-r--r-- 1 root root    131 May 15  2014 modules.softdep

-rw-r--r-- 1 root root 111721 May 15  2014 modules.symbols

-rw-r--r-- 1 root root 142850 May 15  2014 modules.symbols.bin

Any idea?

Best regards, 

Sergio

[Sergio N]

Well, I tried

ln -s /lib/modules/3.8.13-bone50 /lib/modules/3.8.13-bone50-GL

and got a new error:

root@beaglebone:/lib/modules/3.8.13-bone50-GL# modprobe lirc_bbb
FATAL: Module lirc_bbb not found.

Just to make 

root@beaglebone:/lib/modules/3.8.13-bone50-GL# uname -a
Linux beaglebone 3.8.13-bone50-GL #1 SMP Fri Feb 13 13:11:23 UTC 2015 armv7l GNU/Linux

Thanks!