Josef Sipek wrote:
> +#define map_key(c) \
> + do { \
> + usage->code = c; \
> + usage->type = EV_KEY; \
> + set_bit(c,input->keybit); \
> + } while (0)
>
> I'm not quite sure where usage is coming from. Some magical global variable?
> Eeek.
>
> Josef "Jeff" Sipek.
>
>
These macroes like map_key() only use in nek4k_setup_usage() and
ne4k_clear_usage(), so the
variable "usage" is coming from their parameter.
PS: these macroes are modifed from hid-input.c
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