How do I modify correctly an option in the kernel ?

Discussion in 'Kernel Questions' started by Nioubee, Aug 6, 2016.

  1. Nioubee

    Nioubee New Member

    Hello everyone,

    I am trying to setup a TVHeadend transcoding server for home.
    The Ubuntu kernel allows me only 4 DVB-T tuner to be used at the same time.
    My main problem is here, I need to hook up more tuners (I have 12 PCTV 292e HD USB tuners).

    After looking on the web, I need to modify the MAX_DVB_ADAPTER located at Device Drivers > Multimedia Support > Max DVB Adapter. I did it.. I installed them using "dpkg -i compiledfiles.deb" then "update-grub".
    After rebooting on the new kernel there is no change, lsusb shows me all connected USB tuners (12) but when typing "ls /dev/dvb*" it gives me adapter0/adapter1/adapter2/adapter3.

    uname -a :
    Linux tvheadend-ThinkPad-X201 4.4.0-31-generic #50+DVBMAXADAPTER16 SMP Wed Aug 3 19:30:30 CEST 2016 x86_64 x86_64 x86_64 GNU/Linux

    I guess I did something wrong, but where ? I followed this how-to: using latest LTS (ubuntu 16.04)

    Those USB Tuners are connected through two 7-ports USB powered hubs, I already tried to swap them using some other brands of hub

    I've posted this subject twice, one on ubuntuforums (en) and one ubuntu-fr community forums, awaiting replies


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