How can I test a joystick type device?

How can I test a joystick type device?

[Adrian McMenamin]

As below shows I think I have successfully ported the 2.4 Dreamcast
controller driver to 2.6 - but how can I test it? Is there a device I
should be looking for in /dev that I could just cat?

Sorry for the stupid question, but I'm at a loss on this one. :)


-bash-3.1# tree
.
|-- devices
|   |-- 0:00.1 -> ../../../devices/maple/0:00.1
|   `-- 1:00.40 -> ../../../devices/maple/1:00.40
|-- drivers
|   |-- Dreamcast_controller
|   |   |-- 0:00.1 -> ../../../../devices/maple/0:00.1
|   |   |-- bind
|   |   |-- uevent
|   |   `-- unbind
|   |-- Dreamcast_keyboard
|   |   |-- 1:00.40 -> ../../../../devices/maple/1:00.40
|   |   |-- bind
|   |   |-- uevent
|   |   `-- unbind
|   `-- maple_dummy_driver
|       |-- bind
|       |-- uevent
|       `-- unbind
|-- drivers_autoprobe
|-- drivers_probe
`-- uevent

Re: How can I test a joystick type device?

[Harley Laue]

On Friday 08 February 2008 05:53:26 pm you wrote:
> As below shows I think I have successfully ported the 2.4 Dreamcast
> controller driver to 2.6 - but how can I test it? Is there a device I
> should be looking for in /dev that I could just cat?
Cool. 
if a /dev/input/js? or /dev/js? does not show up you can try:
mknod js0 c 13 0
then you can cat js0 and move the joystick to see if it's working

Re: How can I test a joystick type device?

[Paul Mundt]

On Fri, Feb 08, 2008 at 11:53:26PM +0000, Adrian McMenamin wrote:
> As below shows I think I have successfully ported the 2.4 Dreamcast
> controller driver to 2.6 - but how can I test it? Is there a device I
> should be looking for in /dev that I could just cat?
> 
Other than the existing suggestion, you can also use evdev for just
cat'ing and getting the raw events.

Re: How can I test a joystick type device?

[Adrian McMenamin]

On Sat, 2008-02-09 at 11:58 +0900, Paul Mundt wrote:
> On Fri, Feb 08, 2008 at 11:53:26PM +0000, Adrian McMenamin wrote:
> > As below shows I think I have successfully ported the 2.4 Dreamcast
> > controller driver to 2.6 - but how can I test it? Is there a device I
> > should be looking for in /dev that I could just cat?
> > 
> Other than the existing suggestion, you can also use evdev for just
> cat'ing and getting the raw events.
> -

I need to get udev to recognise the driver as a joystick and then create
a node for it. Not sure how to do that...

Re: How can I test a joystick type device?

[Adrian McMenamin]

On Fri, 2008-02-08 at 19:18 -0600, Harley Laue wrote:
> On Friday 08 February 2008 05:53:26 pm you wrote:
> > As below shows I think I have successfully ported the 2.4 Dreamcast
> > controller driver to 2.6 - but how can I test it? Is there a device I
> > should be looking for in /dev that I could just cat?
> Cool. 
> if a /dev/input/js? or /dev/js? does not show up you can try:
> mknod js0 c 13 0
> then you can cat js0 and move the joystick to see if it's working


Clearly the porting isn't as simple as I'd hoped: I cannot seem to get a
udev rule to recognise the thing and if I create the node manually there
is strangeness and an unwillingness to work!

I'll hack away at it, but I obviously need to get a better understanding
of the 2.6 input layer also...

-bash-3.1# ls js* -l
crw-r--r-- 1 root 4294967258 13, 0 Feb 10 19:39 js0
-bash-3.1# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/hda1            189303128 159489980  20197044  89% /
tmpfs                     6852         0      6852   0% /lib/init/rw
udev                     10240         4     10236   1% /dev
tmpfs                     6852         0      6852   0% /dev/shm
/dev/gdrom           189303128 159489980  20197044  89% /mnt
-bash-3.1# mknod js0 c 13 0
mknod: `js0': File exists
-bash-3.1# rm js0
-bash-3.1# mknod js0 c 13
0                                                                                                                                  
-bash-3.1# ls js* -l
crw-r--r-- 1 root 4294967258 13, 0 Feb 10 19:40 js0
-bash-3.1# cat js0
cat: js0: No such device

Re: How can I test a joystick type device?

[Adrian McMenamin]

On Sun, 2008-02-10 at 19:43 +0000, Adrian McMenamin wrote:
> On Fri, 2008-02-08 at 19:18 -0600, Harley Laue wrote:
> > On Friday 08 February 2008 05:53:26 pm you wrote:
> > > As below shows I think I have successfully ported the 2.4 Dreamcast
> > > controller driver to 2.6 - but how can I test it? Is there a device I
> > > should be looking for in /dev that I could just cat?
> > Cool. 
> > if a /dev/input/js? or /dev/js? does not show up you can try:
> > mknod js0 c 13 0
> > then you can cat js0 and move the joystick to see if it's working
> 
> 
> Clearly the porting isn't as simple as I'd hoped: I cannot seem to get a
> udev rule to recognise the thing and if I create the node manually there
> is strangeness and an unwillingness to work!
> 
worked out what I was doing wrong...not compiling in the userland
support. Once that was done everything Just Worked ...afaics any way