Q: use of enum in struct dtv_frontend_properties

I am adding DTMB support (again) for DVB API. There is new parameter interleaving needed. Currently it has 3 values. I defined it as a enum as typedef enum is not allowed anymore in Kernel.

Should I define it as (enum fe_interleaving) or (u8) in struct dtv_frontend_properties?

enum fe_interleaving {
	INTERLEAVING_NONE,
	INTERLEAVING_240,
	INTERLEAVING_720,
};

struct dtv_frontend_properties {
	enum fe_interleaving    interleaving;
};

*** OR ***:

struct dtv_frontend_properties {
	u8    interleaving;
};

regards
Antti

http://palosaari.fi/