[linux-dvb] modprobing causes double the devices to be created

Mark Howells Mark.Howells at softoption.com
Thu Sep 14 15:44:19 CEST 2006

Hi Alan,

> -----Original Message-----
> From: linux-dvb-bounces at linuxtv.org 
> [mailto:linux-dvb-bounces at linuxtv.org] On Behalf Of Alan Chandler
> After installing the recompiled module, I then modprobed them 
> back in the reverse order, checking for the existance of 
> /dev/dvb after each step. 
> Nothing appeared until I modprobed dvb-usb-dtt200u at which 
> point, with two sticks connected I get FOUR /dev/dvb/adapterN 
> directores.  The devices in each of these directories ALL 
> have different minor id numbers. 

I can't precisely understand why you get the additional devices but I'm wondering if it's to do with the way you're modprobing the drivers. Try the following steps

1. rmmod all the modules.
2. remake the modules and run 'make modules_install'
3. run depmod
4. run modprobe dvb-usb-dtt200u

The last step should haul in everything it needs (dvb-core, dvb-usb). Otherwise, your dmesg and lsmod output might help.



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