cir_params
*(struct cir_params *)addr = sc->sc_params;
(struct cir_params *)addr);
sc->sc_params = *(struct cir_params *)addr;
#define CIR_GET_PARAMS _IOR('I', 201, struct cir_params)
#define CIR_SET_PARAMS _IOW('I', 202, struct cir_params)
int (*im_setparams)(void *, struct cir_params *);
struct cir_params sc_params;
emdtv_ir_setparams(void *opaque, struct cir_params *cp)
static int emdtv_ir_setparams(void *, struct cir_params *);
static int irmce_setparams(void *, struct cir_params *);
irmce_setparams(void *priv, struct cir_params *params)