Re: udev Input devices / Joysticks

Re: udev Input devices / Joysticks

[B.Rathmann]

Hello one last time, 


> On Sat, Jun 24, 2006 at 11:35:33AM +0200, Bettina Rathmann wrote:
>> sorry to disturb you, but I have a litte problem in configuring my joysticks 
>> under Linux 2.6.12 (Gentoo current).
> 
> 2.6.12 is not "Gentoo current" by any means.  2.6.17 is the latest
> kernel release. 
> 

Yes, that is true. What I meant was, that I have everything up to date 
regarding Gentoo, except the Kernel (because it was quite a fight to get it 
to work with my system / motherboard and I am weary to do it once again). 

>> I would like to get my joysticks to work using the gameport on my Soundblaster
>> (ENS1371 - Ensoniq AudioPCI,  Ensoniq AudioPCI ENS1371 at 0xb800, irq 22).
>> So I tried to load nearly all modules regarding gameport:
>> prog@koala /proc/asound $ lsmod
>> Module                  Size  Used by
>> grip_mp                 7044  0
>> analog                 10656  0
>> bsd_comp                5760  0
>> ppp_synctty             8448  0
>> ppp_async               9472  1
>> crc_ccitt               2048  1 ppp_async
>> snd_seq_midi            7072  0
>> nls_iso8859_1           4096  1
>> nls_cp437               5760  1
>> sk98lin               206476  1
>> nvidia               4545844  15
>> emu10k1_gp              2944  0
>> ns558                   4996  0
>> snd_ens1371            21472  4
>> snd_rawmidi            20896  2 snd_seq_midi,snd_ens1371
>> snd_ac97_codec         80248  1 snd_ens1371
>> ne2k_pci                8928  0
>> 8390                    8832  1 ne2k_pci 
>> 
>> and then I try to add joystick 0 like this: 
>> 
>> koala manager # cd /dev
>> koala dev # mknod input/js0 c 13 0
>> mknod: `input/js0': File exists
> 
> Ok, it's already working, the device is present. 
> 
>> koala dev # rm input/js0
>> koala dev # mknod input/js0 c 13 0
> 
> Why did you just do that?  udev handles this all for you properly.

Well, 2 reasons:
 - The joystick documentation in the kernel suggest this way
 (Documentation/input/joystick.txt)
 - The device does not work ("No such device" error). BTW, Gentoo was
 configured to tar the device files. 

> 
>> koala dev # cat input/js0
>> cat: input/js0: No such device
>> koala dev # 
>> 
>> So what am I doing wrong? If you could give me just a few pointers to current 
>> HOWTOs, examples or other docs (Seems all I can find are webpages regarding 
>> Kernel 2.2 and 2.4), I certainly don't want you to give me a step-by-step 
>> help, I need to get to work by myself, however, I need docs :)
> 
> There is lots of udev documentation (look in the package and on the
> web.)  I don't see anything wrong here other than you manually deleting
> the device nodes for some unknown reason.  Try stop doing that and see
> if it will work.
Thanks, I will do this, I only looked for joystick related docs, but was to 
dumb to look for udev docs, too. 

Thanks
Bettina 


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Re: udev Input devices / Joysticks

[Dmitry Torokhov]

On 6/26/06, B.Rathmann@ping.de <B.Rathmann@ping.de> wrote:
> >
> >> koala dev # rm input/js0
> >> koala dev # mknod input/js0 c 13 0
> >
> > Why did you just do that?  udev handles this all for you properly.
>
> Well, 2 reasons:
>  - The joystick documentation in the kernel suggest this way
>  (Documentation/input/joystick.txt)
>  - The device does not work ("No such device" error). BTW, Gentoo was
>  configured to tar the device files.
>

Ok, let's start from the beginning... Did you activate gameport
support on your soundcard? It looks like you have ES1371, use
joystick_port=1 module parameter. Look in dmesg and/or sysfs
(/sys/bus/gameport/devices/) and make sure gameport was created.

What joystick are you using? Are you loading correct module for your
joystick? Do you see kernel recognized joystick in dmesg and/or
/proc/bus/input/devices?

-- 
Dmitry

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