Hi all,
On Thu, 2005-05-26 at 12:17, Gerd Knorr wrote:
> Yes, compat_ioctl is for 32bit apps. Had a quick look at the structs
> and they seem to be identical in 32 and 64 bit. I think simply
> hooking the ioctl callback into both ioctl and compat_ioctl could do
> the trick for the frontend device.
I tried to have a look, but .ioctl and .compat_ioctl have different
prototypes (I see that .compat_ioctl has the same prototype as
.unlocked_ioctl).
Anyway, I tried a quick hack without knowing the code, just for fun...
And something like the attached patch works for me (2.6.11 kernel on
AMD64, and a Skystar2 card). I do not think this is the cleanest
possible solution, but with this patch a 32bit dvbtune works:
root@host55:/home/luca/src/tmp/dvbtune # file dvbtune32
dvbtune32: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for
GNU/Linux 2.2.0, dynamically linked (uses shared libs), not stripped
root@host55:/home/luca/src/tmp/dvbtune # ./dvbtune32 -D 2 -f 11919000 -s
27500 -p V -m
Using DVB card "ST STV0299 DVB-S", freq=11919000
tuning DVB-S to Freq: 1319000, Pol:V Srate=27500000, 22kHz tone=off,
LNB: 2
DISEQC SETTING SUCCEDED
Getting frontend status
Event: Frequency: 11918985
SymbolRate: 27500000
FEC_inner: 2
Bit error rate: 296
Signal strength: 42307
SNR: 49815
UNC: 0
FE_STATUS:
Signal=42956, Verror=0, SNR=49839dB, BlockErrors=0, (S|L|C|V|SY)
Signal=42618, Verror=0, SNR=50286dB, BlockErrors=0, (S|L|C|V|SY)
Maybe competent people can use this patch as a base for a more correct
one.
Luca
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