Hi,
after having a look at the documentation it seems to me that the driver
is losing 2 bits of div. I do not know, whether they ever become nonzero
and I did not test this, because I do not have any cable tv.
Besides that, I think the comment above of tuner_set_tv_freq() is misleading.
Best Regards,
Andreas
Index: ves1820.c
===================================================================
RCS file: /cvs/linuxtv/DVB/driver/frontends/Attic/ves1820.c,v
retrieving revision 1.1.2.15
diff -u -r1.1.2.15 ves1820.c
--- ves1820.c 7 Oct 2002 12:51:36 -0000 1.1.2.15
+++ ves1820.c 8 Oct 2002 09:27:33 -0000
@@ -145,7 +145,7 @@
/**
* set up the downconverter frequency divisor for a
- * reference clock comparision frequency of 125 kHz.
+ * reference clock comparision frequency of 62.5 kHz.
*/
static
int tuner_set_tv_freq (struct dvb_frontend *frontend, u32 freq, u8 pwr)
@@ -158,9 +158,11 @@
u8 buf [4] = { (div >> 8) & 0x7f, div & 0xff, byte3[tuner_type],
byte4[tuner_type] | (pwr << 6) };
- if (tuner_type == 1)
+ if (tuner_type == 1) {
+ buf[2] = byte3[tuner_type] | ((div >> 10) & 0x60);
buf[3] = (freq < 174000000 ? 0x88 :
freq < 470000000 ? 0x84 : 0x81) | (pwr << 6);
+ }
return tuner_write (frontend->i2c, addr[tuner_type], buf);
}
--
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