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remyag is offline remyag
2010-06-07 , 12:55
Posts: 22 | Thanked: 3 times | Joined on Jan 2010 @ India
#1
Hi all,

Does N900 receive ir signals?

I have seen at one link that Infrared is provided by lirc_rx51 module .

It can be enabled via the following configuration option:

Symbol: LIRC_RX51 [=m]
Prompt: RX51 CIR transmitter
Defined at drivers/input/lirc/Kconfig:19
Depends on: !S390 && INPUT && INPUT_LIRC && LIRC_DEV && ARCH_OMAP
Location:
-> Device Drivers
-> Input device support
-> Generic input layer (needed for keyboard, mouse, ...) (INPUT [=y])
-> Linux Infrared Remote Control IR receiver/transmitter drivers (INPUT_LIRC [=y])
-> LIRC device loadable module support (LIRC_DEV [=m])
As per the above information INPUT_LIRC should be set by 'y' for activating ir signal receiving.

How can I do this? How can I find drivers/input/lirc/Kconfig?

Please help
Thanks
remyag
 
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clasificado is offline clasificado
2010-06-07 , 12:59
Posts: 466 | Thanked: 180 times | Joined on Feb 2010
#2
AFAIK, the N900 doesnt recive ir signals. not by a software problem, but because it lacks the hardware sensor. it only has a hardware emitter.
 

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Joorin is offline Joorin
2010-06-07 , 19:11
Posts: 726 | Thanked: 345 times | Joined on Apr 2010 @ Sweden
#3
Originally Posted by remyag View Post
...

As per the above information INPUT_LIRC should be set by 'y' for activating ir signal receiving.

How can I do this? How can I find drivers/input/lirc/Kconfig?

Please help
Thanks
remyag
The information about config is related to building the Linux kernel. If you've already got the module (which I think you have), you need to use modprobe or insmod to load it into the kernel and be able to use the IR device.

I recommend modprobe since this will load all other needed kernel modules as well.
 

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Venemo is offline Venemo
2010-06-08 , 07:58
Posts: 1,296 | Thanked: 1,773 times | Joined on Aug 2009 @ Budapest, Hungary
#4
The popular opinion is that the N900 doesn't have an IR receiver.

Still, it may worth a try. Nokia has lied to us about the N900 hardware before (USB host mode, overclockability, etc), so it may very well work.

If there really isn't an IR receiver in the hardware, there is nothing you can do about it from software.

(Someone suggested that the camera module should be used as receiver, but its refresh rate is nowhere near enough to process any IR signals, unfortunately.)
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JorgeFX is offline JorgeFX
2010-06-08 , 08:05
Posts: 214 | Thanked: 256 times | Joined on May 2010
#5
Then, why is this coming http://talk.maemo.org/showthread.php...283#post697283 ??
 
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qwerty12 is offline qwerty12
2010-06-08 , 08:07
Posts: 4,274 | Thanked: 5,358 times | Joined on Sep 2007 @ Looking at y'all and sighing
#6
Originally Posted by JorgeFX View Post
Then, why is this coming http://talk.maemo.org/showthread.php...283#post697283 ??
...because it sends signals, perhaps?
 
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Helmuth is offline Helmuth
2010-06-08 , 09:06
Posts: 1,259 | Thanked: 1,341 times | Joined on Oct 2009 @ Germany
#7
What about using the proximity sensor?

Is it fast enought?
 
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Venemo is offline Venemo
2010-06-08 , 09:19
Posts: 1,296 | Thanked: 1,773 times | Joined on Aug 2009 @ Budapest, Hungary
#8
Originally Posted by Helmuth View Post
What about using the proximity sensor?

Is it fast enought?
The proximity sensor is used to determine the proximity of an object, not to detect IR signals.
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Crogge is offline Crogge
2010-06-08 , 09:21
Posts: 543 | Thanked: 151 times | Joined on Feb 2010 @ Germany
#9
The camera is able to receive IR signals, just start the camera and hold any kind of IR remote infront of it, Congratulations, you just created a cheap night vision :

Still the question is if we can get a FPS which is fast enough to receive all signals, it is theoretically possible.
 
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javispedro is offline javispedro
2010-06-08 , 09:25
Posts: 2,355 | Thanked: 5,249 times | Joined on Jan 2009 @ Barcelona
#10
http://talk.maemo.org/showthread.php?t=48453

At least I've now "re"discovered the lirc remote database and started to put the emitter to "some" use...
 
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