Re: Linux TV support Elgato EyeTV hybrid

[Gilles Risch <gilles.risch@gmail.com>]

On 02/24/2015 12:13 AM, Benjamin Larsson wrote:
> On 02/23/2015 11:54 PM, Gilles Risch wrote:
>> On 02/23/2015 09:36 PM, Benjamin Larsson wrote:
>>> On 02/23/2015 09:24 PM, Gilles Risch wrote:
>>>> On 02/22/2015 10:29 PM, Antti Palosaari wrote:
>>>>> On 02/22/2015 10:04 PM, Benjamin Larsson wrote:
>>>>>> On 02/22/2015 02:47 PM, Gilles Risch wrote:
>>> [...]
>> Not sure if it helps, but I also tried:
>>      $ modprobe em28xx card=82
>>      $ modprobe xc5000
>>      $ echo 0fd9 0018 > /sys/bus/usb/drivers/em28xx/new_id
>>      $ dmesg
>> [  142.728289] usb 8-6: new high-speed USB device number 3 using 
>> ehci_hcd
>> [  142.862556] usb 8-6: New USB device found, idVendor=0fd9, 
>> idProduct=0018
>> [  142.862565] usb 8-6: New USB device strings: Mfr=3, Product=1,
>> SerialNumber=2
>> [  142.862571] usb 8-6: Product: EyeTV Hybrid
>> [  142.862576] usb 8-6: Manufacturer: Elgato
>> [  142.862581] usb 8-6: SerialNumber: 100904010917
>> [  142.863146] em28xx: New device Elgato EyeTV Hybrid @ 480 Mbps
>> (0fd9:0018, interface 0, class 0)
>> [  142.863153] em28xx: Audio interface 0 found (Vendor Class)
>> [  142.863159] em28xx: Video interface 0 found: isoc
>> [  142.863163] em28xx: DVB interface 0 found: isoc
>> [  142.863993] em28xx: chip ID is em2884
>> [  142.927681] em2884 #0: EEPROM ID = 26 00 01 00, EEPROM hash = 
>> 0x1a01bca5
>> [  142.927688] em2884 #0: EEPROM info:
>> [  142.927694] em2884 #0:     microcode start address = 0x0004, boot
>> configuration = 0x01
>> [  142.935299] em2884 #0:     I2S audio, 5 sample rates
>> [  142.935306] em2884 #0:     500mA max power
>> [  142.935312] em2884 #0:     Table at offset 0x27, strings=0x1a78,
>> 0x1a92, 0x0e6a
>> [  142.935466] em2884 #0: Identified as Terratec Cinergy HTC Stick
>> (card=82)
>> [  142.935474] em2884 #0: analog set to isoc mode.
>> [  142.935478] em2884 #0: dvb set to isoc mode.
>> [  142.975149] em2884 #0: Binding audio extension
>> [  142.975152] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
>> [  142.975153] em28xx-audio.c: Copyright (C) 2007-2014 Mauro Carvalho
>> Chehab
>> [  142.975180] em2884 #0: Endpoint 0x83 high-speed on intf 0 alt 7
>> interval = 8, size 196
>> [  142.975184] em2884 #0: Number of URBs: 1, with 64 packets and 192 
>> size
>> [  142.975537] em2884 #0: Audio extension successfully initialized
>> [  142.975540] em28xx: Registered (Em28xx Audio Extension) extension
>> [  143.003553] WARNING: You are using an experimental version of the
>> media stack.
>> [  143.003554]     As the driver is backported to an older kernel, it
>> doesn't offer
>> [  143.003555]     enough quality for its usage in production.
>> [  143.003556]     Use it with care.
>> [  143.003556] Latest git patches (needed if you report a bug to
>> linux-media@vger.kernel.org):
>> [  143.003557]     135f9be9194cf7778eb73594aa55791b229cf27c [media]
>> dvb_frontend: start media pipeline while thread is running
>> [  143.003558]     0f0fa90bd035fa15106799b813d4f0315d99f47e [media]
>> cx231xx: enable tuner->decoder link at videobuf start
>> [  143.003560]     9239effd53d47e3cd9c653830c8465c0a3a427dc [media]
>> dvb-frontend: enable tuner link when the FE thread starts
>> [  143.010977] em2884 #0: Binding DVB extension
>> [  143.567751] usb 8-6: firmware: agent loaded
>> dvb-usb-terratec-htc-stick-drxk.fw into memory
>> [  143.585103] drxk: status = 0x639260d9
>> [  143.585113] drxk: detected a drx-3926k, spin A3, xtal 20.250 MHz
>> [  147.656822] drxk: DRXK driver version 0.9.4300
>> [  147.695203] drxk: frontend initialized.
>> [  147.764493] tda18271 11-0060: creating new instance
>> [  147.766552] TDA18271HD/C2 detected @ 11-0060
>
> I am not sure how certain the TDA18271HD detection is but when I look 
> at the images from here:
>
> http://www.linuxtv.org/wiki/index.php/Elgato_EyeTV_hybrid
>
> I don't see the tuner chip, so it could be a tda chip.
>
>> [  147.997562] DVB: registering new adapter (em2884 #0)
>> [  147.997571] usb 8-6: DVB: registering adapter 0 frontend 0 (DRXK
>> DVB-C DVB-T)...
>
> This sounds good.
>
>> [  147.998567] em2884 #0: DVB extension successfully initialized
>> [  147.998571] em28xx: Registered (Em28xx dvb Extension) extension
>> [  148.023086] WARNING: You are using an experimental version of the
>> media stack.
>> [  148.023087]     As the driver is backported to an older kernel, it
>> doesn't offer
>> [  148.023088]     enough quality for its usage in production.
>> [  148.023089]     Use it with care.
>> [  148.023089] Latest git patches (needed if you report a bug to
>> linux-media@vger.kernel.org):
>> [  148.023090]     135f9be9194cf7778eb73594aa55791b229cf27c [media]
>> dvb_frontend: start media pipeline while thread is running
>> [  148.023091]     0f0fa90bd035fa15106799b813d4f0315d99f47e [media]
>> cx231xx: enable tuner->decoder link at videobuf start
>> [  148.023092]     9239effd53d47e3cd9c653830c8465c0a3a427dc [media]
>> dvb-frontend: enable tuner link when the FE thread starts
>> [  148.034348] em2884 #0: Registering input extension
>> [  148.064107] Registered IR keymap rc-nec-terratec-cinergy-xs
>> [  148.064420] input: em28xx IR (em2884 #0) as
>> /devices/pci0000:00/0000:00:1d.7/usb8/8-6/rc/rc0/input11
>> [  148.064808] rc0: em28xx IR (em2884 #0) as
>> /devices/pci0000:00/0000:00:1d.7/usb8/8-6/rc/rc0
>> [  148.065325] em2884 #0: Input extension successfully initalized
>> [  148.065333] em28xx: Registered (Em28xx Input Extension) extension
>>
>> The dmesg shows that a TDA18271HD/C2 tuner has been detected.
>>
>> A w_scan produced a kernel Oops:
>> [  193.580994] BUG: unable to handle kernel NULL pointer dereference at
>> 0000000000000010
> [...]
>> [  193.581998] RIP: 0010:[<ffffffffa05a9289>] [<ffffffffa05a9289>]
>> media_entity_pipeline_start+0x30/0x2d2 [media]
>
> Try apply this patch:
>
> [PATCH v2] [media] dvb core: only start media entity if not NULL

Applying version 2 of that patch was successful. Creating a channels 
file with w_scan worked too and I'm able to watch TV. The remote control 
doesn't yet work. Next weekend I'll try to create a board file.

Thanks for the support.

>
> MvH
> Benjamin Larsson

Regards,
Gilles