[pvrusb2] Only 6 lines in dmesg for OnAir GT

Dean red1 at linuxstation.net
Sun Feb 28 05:39:03 CST 2010

For a while I suspected a bug in Mandriva 2010.0 as the reason that pvrusb2 would not load when I connected my OnAir GT, however today I tested four live CD distros besides my installed Mandriva.  These are all recent releases from fall 2009, less than 6 months old.  The distros are Fedora, Suse, Kubuntu, Debian.

Result was the same with all; when connecting the OnAir GT I got either 2 or 6 lines in dmesg from the USB stack, depending on the distro.  After that nothing, pvrusb2 did not load.  I also tested each distro with my HVR-850; dmesg showed many more lines including an attempt to load firmware.

I still don't have a clue about why none of these live CD distros will load pvrusb2 when I connect the onAir GT.


Mike Isely wrote:
> On Fri, 26 Feb 2010, Dean wrote:
>> I am using Mandriva 2010.0 Linux.  When I connect my OnAir GT it makes only 6 lines in dmesg.
>> usb 1-3: new high speed USB device using ehci_hcd and address 10
>> usb 1-3: New USB device found, idVendor=11ba, idProduct=1101
>> usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
>> usb 1-3: Product: USB HDTV-GT(1.1)
>> usb 1-3: Manufacturer: OnAirSolution
>> usb 1-3: configuration #1 chosen from 1 choice
>> Why is it not trying to load the firmware?  My Hauppauge HVR-850 makes a lot more lines in dmesg, including some lines that show it looking for and loading firmware.  Shouldn't this OnAir GT be doing the same?
> The firmware isn't being loaded because the driver isn't being loaded.  
> You should see messages when the driver gets loaded into the kernel and 
> then various other messages as it goes through its initialization 
> process.  The messages you do have here only come from the USB stack.  
> There appears to be no attempt to autoload the driver.
>> I guess the pvrusb2 driver is included in my kernel, because I found the following file.
>> /lib/modules/
> Hmm, well it's there in the right spot, but what's with the .gz 
> extension?  Last time I checked, kernel modules have to be uncompressed 
> in order to be loaded.  Try this as root:
> cd /lib/modules/
> gunzip pvrusb2.ko.gz
> depmod -a
> Now unplug and re-plug in your tuner.  Then do:
> lsmod | grep pvrusb2
> You should see a line that has "pvrusb2" in it.  That's evidence that 
> (this time) the driver has been loaded.  Look at your dmesg output again 
> and see if you can find messages from the driver this time.
>> I have already placed v4l-cx2341x-enc.fw into /lib/firmware/ so it is available whenever the driver wants to load it.
> Yes, that's definitely needed as well.
> Does anyone know if Mandriva something strange with kernel modules to 
> save space?
>   -Mike

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