>
> [ 3.482177] input: gpio-keys as /devices/platform/gpio-keys/input/input0
> [ 3.490539] zxy100: zxy100_init
> [ 3.490539] Unable to handle kernel NULL pointer dereference at virtual
> address 00000060
> ...
[ 3.523529] PC is at internal_create_group+0x24/0x1d8
> [ 3.531311] LR is at sysfs_create_group+0x18/0x1c
>
> what's wrong?????????
Your zxy100 driver is buggy, probably some structure isn't initialized
correctly.
When I had similar problems, I started to pepper my kernel with printk("#HS
%s:%d\n", __func__, __LINE__) statements, to so where the execution path
went. Occassionally I also printed the contents of values.
It also helps to look at similar drivers... or to ditch zxy100. After all,
there's drivers/input/touchscreen/usbtouchscreen.c, why should one invent a
whole new USB touchscreen driver if one is already present?
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