Hi Patrick,
I've applied your fixes for multiple VP7045 USB DVB-T devices (I'm using
a Digitalnow dual DVB-T) and it has been working flawlessly here for
over a week.
There is still a problem with the read signal strength function in
vp7045-fe.c. To bring it in line with mt352.c in the frontends/
directory, the function should be changed to: (As per the Zarlink data
sheets, frontends/mt352.c is correct).
static int vp7045_fe_read_signal_strength(struct dvb_frontend* fe, u16
*strength)
{
struct vp7045_fe_state *state = fe->demodulator_priv;
u16 signal = ((vp7045_read_reg(state->d, 0x14) & 0x0f) << 12) |
(vp7045_read_reg(state->d, 0x15) << 4);
*strength = ~signal;
return 0;
}
Ideally this function should also have a logarithmic scaling factor
applied to make it more usable in the 0 - 100% range - the same scaling
should also be applied to the frontends/mt352.c code. Then again,
scaling should be applied to a lot of the TV/DVB decoders (both USB and
non-USB alike) and in quite a few areas. :-)
Cheers,
Jeremy
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