mythtv at rtr
Apr 15, 2011, 9:02 AM
Post #12 of 26
On 11-04-15 11:55 AM, Mark Lord wrote:
> On 11-04-15 11:49 AM, mlists wrote:
>> On 04/15/2011 11:24 AM, Mark Lord wrote:
>>> On 11-04-15 07:28 AM, Greg Hormann wrote:
>>>> I then tried to configure using serial port. I copied over the
>>>> lircd.conf file from the old server, setup hardware.conf and restarted
>>>> the service. The lirc_serial module seems to correctly load, but the
>>>> it doesn't change the channels. (Unfortunately this blaster doesn't
>>>> light up like the HD_PVR, so I can't see if a signal is actually being
>>>> sent, but if I plug it back into the old mythserver it still works..)
>>> I didn't break it, but I can fix it.
>>> Grab this tarball, unpack it, and use "make clean install".
>>> Then reboot. Presto, working lirc_serial blaster.
>>> Mind you, it only works as well as the code therein.
>>> I find it to be rather spotty when run on a busy mythtv system.
>>> Sometimes it works, sometimes it only partially works,
>>> depending upon how busy the rest of the system is.
>>> Someday I really ought to write a proper implementation for this thing,
>>> except I don't actually need/use it myself.
>> I just tried this because I can't get the lirc module to see my
>> available serial port. Everything was working fine until I upgraded to
>> 2.6.38. I also use the v4l git (media_build). I get this error:
>> [ 24.867152] lirc_serial: disagrees about version of symbol
>> [ 24.867159] lirc_serial: Unknown symbol lirc_register_driver (err -22)
>> [ 24.873145] lirc_serial: disagrees about version of symbol
> make clean ; make install ; reboot
Oh, I know what's going on.. the v4l snapshot installed its copy
of lirc_serial.ko in a different location from the default for ubuntu.
So your system is getting a bit confused there by all of that.
I can't help much with systems that replace the in-kernel drivers
with the v4l snapshots -- too many variables for me to guess and deal with.
So just remove the lirc_serial.ko file from the system:
rm /lib/modules/`uname -r`/kernel/drivers/staging/lirc/lirc_serial.ko
and then rebuild/reinstall your v4l snapshot drivers again.
* * *
The "always busy" serial port bug in v4l/lirc (dunno which) is also something
I remember seeing once. I had to hack lirc source code to remove the offending
"O_EXCL" flag from something.
I don't use LIRC, lirc_serial, or the v4l sources here, so I can't help with those.
mythtv-users mailing list
mythtv-users [at] mythtv