[linux-dvb] INVERSION_AUTO used by latest scan breaks grundig_29504-401 fe

[Jon Burgess]

The latest scan code defaults to using the "INVERSION_AUTO" parameter of 
the frontend. Unfortunately this breaks my Nova-T card since the grundig 
401 frontend does not support this mode.

This reveals a couple of problems:
- The scan and vdr-1.2.0 applications both ignore the frontend flag for 
"FE_CAN_INVERSION_AUTO" and will ask for this mode even if the frontend 
doesn't claim to support it.

- The grundig_29504-401 apply_frontend_param() aborts and returns 
"-EINVAL" if the application tries to set INVERSION_AUTO, but the ioctl 
code which calls this function just ignores the return code.

The result is a bit of a mess. Ideally all three bits of code need to 
change.

Does anyone else want to fix the frontend code and scan application or 
should I try to fix it myself?

	Jon



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