Set Max M4 to be visible as DVB-T/T2 card only(or any other DVB type)

1.    Go to the driver directory:

cd /usr/src/dddvb-0.9.xx
(replacing xx with the number of driver, e.g. 0.9.37 or any newer version)

2.    Clean driver:

sudo make clean

 

Open the file /ddbridge/ddbridge-m4.c with any editor to edit as follows (in the very bottom):

static struct dvb_frontend_ops m4_ops = { 

.delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_B, SYS_DVBC_ANNEX_C, SYS_ISDBC, SYS_DVBC2, SYS_DVBT, SYS_DVBT2, SYS_ISDBT, SYS_DVBS, SYS_DVBS2, SYS_ISDBS},

        .info = {

                .name = "M4",

                .frequency_min = 950000,

…

Change to... (remove or better comment the whole .delsys section and type new one) 

static struct dvb_frontend_ops m4_ops = {

//      .delsys = { SYS_DVBC_ANNEX_A, SYS_DVBC_ANNEX_B, SYS_DVBC_ANNEX_C,SYS_ISDBC, SYS_DVBC2, SYS_DVBT, SYS_DVBT2, SYS_ISDBT, SYS_DVBS, SYS_DVBS2, SYS_ISDBS, },

//set only DVB types you need (i.e. DVBT/T2 or DVBC... or DVBS...)

       .delsys = { SYS_DVBT, SYS_DVBT2 },

      .info = {

                .name = "M4",

                .frequency_min = 950000,

…

Save changes. 
 

3.    Build and install driver:

sudo make
sudo make install

4.    The system announce the new modules and their dependencies:

sudo depmod -a
​ 

5.    Reboot PC:

sudo reboot

Now your Max M4 card should be visible at the DVB Apps as a DVB-T/T2 card only.