Trent Piepho wrote: > On Thu, 6 Sep 2007, hermann pitton wrote: >> Am Mittwoch, den 05.09.2007, 13:29 +0200 schrieb Paolo Dell'Aquila: >>> Than I've done some test with Mythtv and auto-scanning >>> for channels... and now... >>> >>> ...now I'm having the following (BIG) problem: >>> dvb-t doesn't work anymore (also in kaffeiene or tzap). >>> >>> dmesg has the following error: >>> DVB: frontend 0 frequency 2147483647 out of range (51000000..858000000) >> That sounds really mad, especially as you are in freq. limits of the >> tda8275 and not of the tda8275a, which for sure you have. > > The limits are comming from the tda10046 info. I think the correct thing > to do here is to not have the tda1004x driver define frequency limits, as > it's the tuner that has the limits. > > But, 2147483647 is not a valid DVB-T frequency. It looks like some random > number. It's not that random: 2147483647 equals INT_MAX and also LONG_MAX on 32 bit systems. Quoting from the manpage of strtol(): The strtol() function returns the result of the conversion, unless the value would underflow or overflow. If an underflow occurs, strtol() returns LONG_MIN. If an overflow occurs, strtol() returns LONG_MAX. In both cases, errno is set to ERANGE. Precisely the same holds for strtoll() (with LLONG_MIN and LLONG_MAX instead of LONG_MIN and LONG_MAX). My conclusion: Your channels.conf contains invalid frequency values. Tzap uses strtol() to parse those values and returns LONG_MAX. The error could be reported to the user by applying the attached patch. Regards, Andreas
diff -r 1923f74d97ae util/szap/azap.c --- a/util/szap/azap.c Wed Jun 27 19:46:43 2007 +0200 +++ b/util/szap/azap.c Thu Sep 06 02:47:52 2007 +0200 @@ -104,6 +104,8 @@ int parse_int(int fd, int *val) }; *val = strtol(number, NULL, 10); + if (errno == ERANGE) + return -4; return 0; } diff -r 1923f74d97ae util/szap/tzap.c --- a/util/szap/tzap.c Wed Jun 27 19:46:43 2007 +0200 +++ b/util/szap/tzap.c Thu Sep 06 02:47:52 2007 +0200 @@ -180,6 +180,8 @@ int parse_int(int fd, int *val) }; *val = strtol(number, NULL, 10); + if (errno == ERANGE) + return -4; return 0; }
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