Fwd: 0bda:2838 Ezcap DVB USB adaptor - no device files created

Fwd: 0bda:2838 Ezcap DVB USB adaptor - no device files created

[Arthur Marsh]

Hi, I bought one of these things having seen the Linux penguin on the
box and compiled the code from the
http://jms.id.au/wiki/EzcapDvbAdapter web page on a quad core AMD64
machine using 3.0.0-rc5 Linux kernel and GCC 4.6.1 under Debian sid.

On boot-up the device is at least partially recognised:

[    1.430924] usb 1-5: New USB device found, idVendor=0bda, idProduct=2838
[    1.431005] usb 1-5: Product: RTL2838UHIDIR
[    6.245292] IR NEC protocol handler initialized
[    6.284327] IR RC5(x) protocol handler initialized
[    6.338049] IR RC6 protocol handler initialized
[    6.371470] IR JVC protocol handler initialized
[    6.448155] IR Sony protocol handler initialized
[    6.590577] lirc_dev: IR Remote Control driver registered, major 252
[    6.591144] IR LIRC bridge handler initialized
[    7.085160] usbcore: registered new interface driver dvb_usb_rtl2832u


$ lsmod|grep dvb
dvb_usb_rtl2832u      111764  0
dvb_usb                18302  1 dvb_usb_rtl2832u
dvb_core               77682  1 dvb_usb
rc_core                18294  7
dvb_usb,ir_lirc_codec,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,ir_nec_decoder
i2c_core               23876  7
dvb_usb,max6650,radeon,drm_kms_helper,drm,i2c_algo_bit,i2c_piix4
usbcore               119731  5 dvb_usb_rtl2832u,dvb_usb,ohci_hcd,ehci_hcd

but apparently no device files are created (there is no /dev/dvb tree).

Any suggestions for things to try to get this working welcome.

Regards,

Arthur.

Re: Fwd: 0bda:2838 Ezcap DVB USB adaptor - no device files created / RTL2831U/RTL2832U

[Jan Hoogenraad]

This is the same problem why the tree on
http://linuxtv.org/hg/~jhoogenraad/rtl2831-r2/
does not work for newer kernels.

I have decided AGAINST making it runnable on newer kernels, as there are 
some people working right now on a new release.

Once the status becomes more clear, I'll update
http://www.linuxtv.org/wiki/index.php/Realtek_RTL2831U

Arthur Marsh wrote:
> Hi, I bought one of these things having seen the Linux penguin on the
> box and compiled the code from the
> http://jms.id.au/wiki/EzcapDvbAdapter web page on a quad core AMD64
> machine using 3.0.0-rc5 Linux kernel and GCC 4.6.1 under Debian sid.
>
> On boot-up the device is at least partially recognised:
>
> [ 1.430924] usb 1-5: New USB device found, idVendor=0bda, idProduct=2838
> [ 1.431005] usb 1-5: Product: RTL2838UHIDIR
> [ 6.245292] IR NEC protocol handler initialized
> [ 6.284327] IR RC5(x) protocol handler initialized
> [ 6.338049] IR RC6 protocol handler initialized
> [ 6.371470] IR JVC protocol handler initialized
> [ 6.448155] IR Sony protocol handler initialized
> [ 6.590577] lirc_dev: IR Remote Control driver registered, major 252
> [ 6.591144] IR LIRC bridge handler initialized
> [ 7.085160] usbcore: registered new interface driver dvb_usb_rtl2832u
>
>
> $ lsmod|grep dvb
> dvb_usb_rtl2832u 111764 0
> dvb_usb 18302 1 dvb_usb_rtl2832u
> dvb_core 77682 1 dvb_usb
> rc_core 18294 7
> dvb_usb,ir_lirc_codec,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,ir_nec_decoder
>
> i2c_core 23876 7
> dvb_usb,max6650,radeon,drm_kms_helper,drm,i2c_algo_bit,i2c_piix4
> usbcore 119731 5 dvb_usb_rtl2832u,dvb_usb,ohci_hcd,ehci_hcd
>
> but apparently no device files are created (there is no /dev/dvb tree).
>
> Any suggestions for things to try to get this working welcome.
>
> Regards,
>
> Arthur.
>
>
>
> --
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>


-- 
Jan Hoogenraad
Hoogenraad Interface Services
Postbus 2717
3500 GS Utrecht

Re: Fwd: 0bda:2838 Ezcap DVB USB adaptor - no device files created / RTL2831U/RTL2832U

[Joel Stanley]

Hello Jan,

On Sun, Jul 3, 2011 at 05:53, Jan Hoogenraad
<jan-conceptronic@hoogenraad.net> wrote:
> I have decided AGAINST making it runnable on newer kernels, as there are
> some people working right now on a new release.

I appreciate that you would prefer efforts to go towards a upstream
driver. In the mean time I've updated the git tree[1] on my website.
There were no real changes required; just a re-build with an updated
dvb-usb.h and dvb_frontend.h from the kernel tree. Checkout the
linux-3 branch.

> Once the status becomes more clear, I'll update
> http://www.linuxtv.org/wiki/index.php/Realtek_RTL2831U

Are you able to give us more information on this new driver? Is there
a tree somewhere we can test, or perhaps assist in writing the driver?

Cheers,

Joel

[1] A disclaimer: the git tree is a horrible hack so that I can watch
tv; I look forward to a in-tree driver.

Re: Fwd: 0bda:2838 Ezcap DVB USB adaptor - no device files created / RTL2831U/RTL2832U

[Arthur Marsh]

Joel Stanley wrote, on 03/07/11 12:17:
> Hello Jan,
>
> On Sun, Jul 3, 2011 at 05:53, Jan Hoogenraad
> <jan-conceptronic@hoogenraad.net>  wrote:
>> I have decided AGAINST making it runnable on newer kernels, as there are
>> some people working right now on a new release.
>
> I appreciate that you would prefer efforts to go towards a upstream
> driver. In the mean time I've updated the git tree[1] on my website.
> There were no real changes required; just a re-build with an updated
> dvb-usb.h and dvb_frontend.h from the kernel tree. Checkout the
> linux-3 branch.

Thanks, I rebuilt this against the linux-3 branch and now see the device 
tree:

# ls -alR /dev/dvb
/dev/dvb:
total 0
drwxr-xr-x  4 root root   80 Jul  3 13:33 .
drwxr-xr-x 15 root root 3140 Jul  3 13:33 ..
drwxr-xr-x  2 root root  120 Jul  3 13:33 adapter0
drwxr-xr-x  2 root root  120 Jul  3 13:33 adapter1

/dev/dvb/adapter0:
total 0
drwxr-xr-x  2 root root     120 Jul  3 13:33 .
drwxr-xr-x  4 root root      80 Jul  3 13:33 ..
crw-rw----+ 1 root video 212, 0 Jul  3 13:33 demux0
crw-rw----+ 1 root video 212, 1 Jul  3 13:33 dvr0
crw-rw----+ 1 root video 212, 3 Jul  3 13:33 frontend0
crw-rw----+ 1 root video 212, 2 Jul  3 13:33 net0

/dev/dvb/adapter1:
total 0
drwxr-xr-x  2 root root     120 Jul  3 13:33 .
drwxr-xr-x  4 root root      80 Jul  3 13:33 ..
crw-rw----+ 1 root video 212, 4 Jul  3 13:33 demux0
crw-rw----+ 1 root video 212, 5 Jul  3 13:33 dvr0
crw-rw----+ 1 root video 212, 7 Jul  3 13:33 frontend0
crw-rw----+ 1 root video 212, 6 Jul  3 13:33 net0

but haven't had time to test it further yet.
I'd be interested to hear more about the new release.

Arthur.