[Buildroot] /dev management ?

[Buildroot] /dev management ?

[David Picard]

Hello,

I am trying to get the ft6x06 touchscreen driver to work. When I load 
the driver, /dev/input/mouse0 is created, but no /dev/input/event*. Same 
thing when I hook up a USB mouse. With both devices, I can "cat 
/dev/input/mouse0 | hexdump" and see events when I move the mouse / 
touch the screen.

evtest and ts_test won't work, complaining that /dev/input/mouse0 is not 
a Linux input event device. My Qt5 app doesn't grab the touchscreen events.

My config :
- Raspberry Pi B+ and Adafruit 2.8" PiTFT w/ cap touch. I got the 
display part working OK.
- Buildroot 2015.08.1
- default /dev management method, i.e. "Dynamic using devtmpfs only".
- rootnfs (root file system on my laptop)


Thanks in advance for your help,
David.

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Platform :

[Buildroot] /dev management ?

[Floris Bos]

On 10/30/2015 01:17 PM, David Picard wrote:
> I am trying to get the ft6x06 touchscreen driver to work. When I load 
> the driver, /dev/input/mouse0 is created, but no /dev/input/event*. 

Recall the default raspberry_defconfig builds evdev as module instead of 
into the kernel.
So you might need to do "modprobe evdev"


Yours sincerely,

Floris Bos