+static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend *fe,

> +                                            u16 *strength)
>

In my opinion, the arguments on new line should be just below the start of
arguments on top line. Like this:

+static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend *fe,
+                                                                     u16
*strength)



+               .caps = FE_CAN_FEC_1_2 |
> +                       FE_CAN_FEC_2_3 |
>

Similarly, here too and other places too:

+               .caps = FE_CAN_FEC_1_2 |
+                           FE_CAN_FEC_2_3 |

Regards,
Amit