Webcamd and the au0828

[Hans Petter Selasky]

On Friday 14 January 2011 22:12:41 Kevin Baxter wrote:
> On Thu, Jan 13, 2011 at 6:49 PM, Andrew Gallatin <gallatin at gmail.com> wrote:
> > On Thu, Jan 13, 2011 at 6:43 PM, Luigi Rizzo <rizzo at iet.unipi.it> wrote:
> > > you prompted me to try the same for em28xx, so i followed a similar
> > 
> > route:
> > 
> > Try using webcamd from the Hans' SVN, not from ports.  Hans & I got
> > em28xx working earlier this week.  I tripped over a SEGV like the OP
> > describes, and Hans fixed it.  For at least my em28xx stick, it is
> > working well.
> > 
> > Drew
> 
> Like I accidentally replied to only Andrew, yes the svn fixed the
> dev->driver issue already. An upstream driver change broke the dw2102.c
> compilation, so I commented it out.
> Now it detects the stick and populates /dev, so far so good. But it still
> doesn't want to work. pwcview gives me:
> Webcam set to: 320x240 (sif) at 5 fps
> libv4l2: error queuing buf 0: Invalid argument
> libv4l2: error queuing buf 1: Invalid argument
> libv4l2: error queuing buf 2: Invalid argument
> libv4l2: error queuing buf 3: Invalid argument
> libv4l2: error reading: Device busy
> Error reading from webcam: Device busy
> 
> and xawtv can't use directvideo. It probably doesn't like my radeon.
> Leaving only the behemoth that is MythTV to diagnose. It sees the input
> source, but a channel scan fails to find anything.
> 
> The webcamd debug log:
> Linux video capture interface: v2.00
> 
> -snip a whole lot of registrations-
> 
> Attached ugen5.2[0] to cuse unit 0
> au0828: i2c bus registered
> tveeprom 129-0050: Hauppauge model 72001, rev B3F0, serial# 7982575
> tveeprom 129-0050: MAC address is 0x7fffffffe855M
> tveeprom 129-0050: tuner model is Xceive XC5000 (idx 150, type 76)
> tveeprom 129-0050: TV standards NTSC(M) ATSC/DVB Digital (eeprom 0x88)
> tveeprom 129-0050: audio processor is AU8522 (idx 44)
> tveeprom 129-0050: decoder processor is AU8522 (idx 42)
> tveeprom 129-0050: has no radio, has IR receiver, has no IR transmitter
> hauppauge_eeprom: hauppauge eeprom: model=72001
> analog subdev registration failed
> tuner subdev registration fail
> au8522 129-0047: creating new instance
> xc5000 129-0061: creating new instance
> xc5000: Successfully identified at address 0x61
> xc5000: Firmware has not been loaded previously
> DVB: registering new adapter (au0828)
> DVB: registering adapter 0 frontend 0 (Auvitek AU8522 QAM/8VSB Frontend)...
> Registered device AU0828 [Hauppauge HVR950Q]
> Creating /dev/video0
> Creating /dev/video1
> Creating /dev/dvb/adapter0/demux0
> Creating /dev/dvb/adapter0/dvr0
> Creating /dev/dvb/adapter0/frontend0
> 
> and upon channel scanning:
> 
> xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)...
> Loading firmware at '/boot/modules/dvb-fe-xc5000-1.6.114.fw', f=7
> xc5000: firmware read Zu bytes.
> xc5000: firmware uploading...
> xc5000: firmware upload complete...
> 
> I'm not sure what's with the Zu bytes thing. That translates into
> 0x5a75=21357, or 0x755a=30042 (for endianness), but the actual size of the
> firmware file is 12401 bytes. Compression?
> More importantly, there are references to the au8522, which according to
> the v4l wiki, is the 950Q's A/V decoder. It looks like au8522_decoder.c is
> needed after all. And the linker wants an implementation of
> i2c_register_driver and i2c_del_driver.


You need to use vlc with this device.

vlc --dvb-adapter=0 dvb://

--HPS