[linux-dvb] Re: Small patch to disable zigzagging

[Holger Waechtler <holger@convergence.de>]

Carlo E. Prelz wrote:
> A few weeks ago I had taken the time to write a small mod to the dvb
> drivers that allows me to enable or disable zigzagging with a ioctl
> call. I need it because I like to move my parabola to point to
> different satellites, and the signal strength indication is
> frustratingly useless as a help for correct alignment if tuning is
> happily jumpimg up and down. 
> I added two IOCTL's, called FE_ZIGZAG and FE_DONT_ZIGZAG. The patch is
> very simple, and works fine here. I have made sure that, if these
> ioctls are not used, there is no change in behaviour. 
> I have now generated a patch file from plain linuxtv-dvb-1.0.0, that I
> am including in this message. Is there some possibility to have this
> applied to the main tree?
no, an ioctl like this is nice for debugging purposes, but in general 
the user space application is not responsible to maintain the hardware. 
If a particular frontend don't needs zigzagging just set the 
FE_CAN_RECOVER bit in the driver.

Holger



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