[linux-dvb] [PATCH] Add syntek corp device to au0828

Michael Krufky mkrufky at linuxtv.org
Sat Nov 8 21:58:40 CET 2008

On Fri, Oct 17, 2008 at 8:57 AM, Mark Kimsal <mark at metrofindings.com> wrote:
> On Thursday 16 October 2008 11:11:39 am you wrote:
>> I thought this stick had an MT2130 inside -- looks like you've got
>> another revision with a TDA18271... very interesting :-)
>> You say that ATSC works -- does it work on more than just one channel?
>>  If ATSC works, then QAM should work as well.  NTSC is not yet
>> supported in the Linux driver.
>> Can you show me the dmesg output when the driver loads?  Also, can you
>> give me the exact name of the device (from the retail package) ?
> Yes, more than one channel works.  I do see the module TDA18721 loaded along
> with a couple other.  Again, I'm not 100% sure that this is the woodbury, but
> it works.  I can scan channels, I've watched 4-5 stations.  It seems to
> kernel oops every once in a while on very static-y stations.

It's definitely not a "woodbury", but if the woodbury configuration is
working for you, then it could be similar.

The really strange thing is that I have a device in my hand with usb
ID 05e1:0400 .  I opened it up, and there is an mt2130 and an au8502.

This is _not_ a tda18271c2 and an au8522.  So, the fact that the
tda18271c2 + au8522 driver combination is working for you tells us
that multiple configurations are out there that all have the same usb

or, by some strange chance, the my2130 in your stick might be tuned to
some default frequency that just happens to have channels.

I asked you if you were able to receive multiple channels -- are they
all on the same frequency, or are they on different frequencies?

Would it be possible for you to open up the device and take some
hi-res digital photos?

> I just upgraded to 2.6.27 and it doesn't work anymore.  Modprobing au0828 does
> not load up any other modules like the tda18721 and does not create
> a /dev/dvb folder.  This is a problem with the latest hg tip of v4l-dvb.

I will have to take a look into this -- I haven't tested 2.6.27
enough, myself.  If there is a problem, then we'll have to fix it for
the 2.6.27.y stable series.

> dmesg from 2.6.27 (not working):
> usb 1-2: new high speed USB device using ehci_hcd and address 2
> usb 1-2: configuration #1 chosen from 1 choice
> usb 1-2: New USB device found, idVendor=05e1, idProduct=0400
> usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 1-2: Product: USB 2.0 Video Capture Controller
> usb 1-2: Manufacturer: Syntek Semiconductor
> au0828 driver loaded
> usbcore: registered new interface driver au0828
> usbcore: registered new interface driver snd-usb-audio
> dmesg from 2.6.24 (working):
> usb 1-2: new high speed USB device using ehci_hcd and address 3
> usb 1-2: configuration #1 chosen from 1 choice
> au0828: i2c bus registered
> tveeprom 1-0050: Encountered bad packet header [ff]. Corrupt or not a
> Hauppauge eeprom.
> hauppauge_eeprom: warning: unknown hauppauge model #0
> hauppauge_eeprom: hauppauge eeprom: model=0
> tda18271 1-0060: creating new instance
> TDA18271HD/C2 detected @ 1-0060
> DVB: registering new adapter (au0828)
> DVB: registering frontend 0 (Auvitek AU8522 QAM/8VSB Frontend)...
> Registered device AU0828 [Hauppauge Woodbury]
> As per my other email (sabrent/auvitek unknown usb device) I'm not entirely
> sure of the brand name.  The Web store lists it as "sabrent".  lsusb says
> it's "syntek", but Windows and the device manager says it's an "auvitek".
> The box has literally no brand name.  The only "brand" looking things are
> just acronyms like NTSC and ATSC.  The windows .inf file for the driver is
> littered with the words "auvitek international", "copyright auvitek" and the
> like....
> Although I didn't buy the device, the first brand name that I identified would
> be "auvitek".  Sabrent was only found after back tracking to the the retailer
> and seeing the product page.  I don't think that "Syntek" is the proper
> coporation for the usb vendor ID of 05e1.

Auvitek is the chip manufacturer.  Lets go with the name "Syntek" for
now.  I've seen this in retail packaging using the name, "Syntek
Teledongle" ...

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