geekindenial schrieb:
libv4l is 0.5.8 (lastest, downloaded from libv4l website)

Cheers,
Vinh

On Feb 1, 8:53 pm, GWater <[email protected]> wrote:
geekindenial schrieb:



Hi guys,
I have found a few issues:
1- Repos Access Instructions Wrong:
I can not download the repository with the commands listed in the
online instructions at (http://groups.google.com/group/microdia/web/
testing-microdia-driver-draft):
$ git clonehttp://repo.or.cz/r/microdia.git
error: Can't lock ref
$ git clonehttp://repo.or.cz/microdia.git
Cannot get remote repository information.
Perhaps git-update-server-info needs to be run there?
I have to change the http: bit to git: then it works
$ git clone git://repo.or.cz/microdia.git
2- Driver Doesn't Work Anymore:
My webcam is 0c45:6270 Microdia U-CAM PC Camera NE878, I used to be
able to use this driver on an older machine with kernel 2.6.18 but it
has since died and I moved to a machine with 2.6.24 kernel. I have
successfully compiled and load the module (using both the old source
code I used last year, and the lastest microdia source code) on this
new kernel, however nothing works.
On module loading dmesg show every OK:
--
sn9c20x: SN9C20X USB 2.0 Webcam - 0C45:6270 plugged-in.
sn9c20x: Detected MT9V011 Sensor.
sn9c20x: Webcam device 0C45:6270 is now controlling video device /dev/
video0
sn9c20x: Using yuv420 output format
usbcore: registered new interface driver sn9c20x
sn9c20x: SN9C20x USB 2.0 Webcam Driver v2009.01 loaded
--
Howerver tests with mplayer (as instructed in online instruction
above) has this error:
--
$ LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so mplayer tv:// -tv
driver=v4l2:width=640:height=480:fps=25:device=/dev/video0 -vo xv
...
Playing tv://.
TV file format detected.
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <[email protected]>
 comment: first try, more to come ;-)
Selected device: SN9C20x USB 2.0 Webcam Driver
 Capabilites:  video capture  read/write  streaming
 supported norms:
 inputs: 0 = Webcam;v4l2: ioctl get input failed: Invalid argument
 Current input: 1
 Current format: unknown (0x30323953)
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl enum norm failed: Invalid argument
Error: Cannot set norm!
Selected input hasn't got a tuner!
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
---
Test image capture with streamer also creates errors:
$ streamer -c /dev/video0 -o test.A.jpeg
files / video: JPEG (JFIF) / audio: none
no way to get: 320x240 JPEG (JFIF)
movie writer initialisation failed
When these errors occur, dmesg spit out these messages:
sn9c20x: Using yuv420 output format
sn9c20x: Using yuv420 output format
sn9c20x: Using yuv420 output format
Anything I can do to help with debugging the problem?
Thanks and keep up the great work guys,
Vinh
Which version of libv4l are you using?

Please update to 0.5.8 or later.

GWater

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Please reload the sn9c20x.ko module with the following parameters:
# insmod sn9c20x.ko log_level=15

Then run the mplayer command and afterwards post the output of
$ dmesg | grep sn9c20x

GWater

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