Plextor ConvertX and /sys/class/video4linux

[Byron Poland]

I have a Plextor ConvertX which is now supported under linux with a
gpl'd driver a binary firmware.  I tried the initial version of the
driver a month ago or so, and it worked fine on my Hoary based laptop.
 I've stayed pretty current with updates to Hoary, and am now trying
to get the driver working again to check out the newly added support
in Mythtv.

The driver compiles fine and loads with hotplug with insertion:

Mar 30 22:43:37 localhost kernel: usb 4-3: new high speed USB device
using ehci_hcd and address 5
Mar 30 22:43:38 localhost usb.agent[10341]:      wis-ezusb: loaded successfully
Mar 30 22:43:38 localhost /etc/hotplug/usb/wis-ezusb: load
/usr/lib/hotplug/firmware/ezusb/hpi_PX-TV402U.hex for 93b/a004/1 to
/proc/bus/usb/004/005
Mar 30 22:43:38 localhost kernel: usb 4-3: USB disconnect, address 5
Mar 30 22:43:39 localhost kernel: usb 4-3: new high speed USB device
using ehci_hcd and address 6
Mar 30 22:43:50 localhost usb.agent[10429]:      go7007-usb: loaded successful
Mar 30 22:43:50 localhost kernel: usbcore: registered new driver go7007


However,  for some reason no video4linux device gets registered.  This
despite the autoloading of videodev and v4l2_common modules loading
with the go7007 module:

byron at harryhood /dev $ lsmod | grep go
go7007_usb             12320  0
go7007                 49248  1 go7007_usb
v4l2_common             5696  1 go7007
videodev                9952  1 go7007
snd_go7007              6724  1 go7007
i2c_core               22768  2 go7007_usb,go7007
firmware_class         10176  2 go7007,ipw2200
snd_pcm                98280  4
snd_go7007,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd                    56900  7
snd_go7007,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
usbcore               122552  5 go7007_usb,hci_usb,ehci_hcd,uhci_hcd

I'm sort of corresponding with the driver developer from wis-tech over
on the forums at divx.com, but based on the intial reaction from him,
he is sort of surprised this isn't working.  I was wondering if there
is anything specific in Ubuntu that would screw this up?.

Other video4linux stuff seems to work fine, for example, I have a
phillips pwc based webcam which registers at video0 on insertion, and
obviously creates a /sys/class/video4linux/ dir and corresponding
video0 link.