Hi everyone!

I'm having trouble with my webcam. First I will describe the scenario.

I have a Acer Aspire 7520-5949 running Slackware Linux 12.1 with Linux 2.6.25.
I have downloaded svn trunk version of uvcvideo driver, which support Suyin webcam.

uname -a: Linux symphony 2.6.25-smp #3 SMP Mon Jun 23 01:13:41 BRT 2008 i686 AMD Athlon(tm) 64 X2 Dual-Core Processor TK-53 AuthenticAMD GNU/Linux
lsusb: Bus 003 Device 002: ID 064e:a101 Suyin Corp.
cat version.h: #define DRIVER_VERSION  "SVN r220"

I get load without problems the module built as uvcvideo.ko and it generates a device on /dev/v4l/video0, and in dmesg or tail /var/log/syslog appears the following lines:
Linux video capture interface: v2.00
uvcvideo: Found UVC 1.00 device Acer CrystalEye webcam (064e:a101)
input: Acer CrystalEye webcam as /class/input/input8
usbcore: registered new interface driver uvcvideo
USB Video Class driver (SVN r217)

I have tried use luvcview to test my webcam, without success:

$ ./luvcview
luvcview version 0.2.1
Video driver: x11
A window manager is available
video /dev/video0
Unable to set format: 22.
 Init v4L2 failed !! exit fatal

Defining format with yuv, I have got the following message in the terminal:
$ ./luvcview -f yuv
luvcview version 0.2.1
Video driver: x11
A window manager is available
video /dev/video0
Unable to start capture: 71.
Error grabbing
 Clean Up done Quit

Trying again, I have got a window showing my face. I have closed the window e tried again, without success, and the terminal showed me the same first error with format yuv. I have tried again and I have got success. Conclusion, the luvcview just works when I try twice.

Using mplayer with that command line: mplayer tv:// -tv fps=15:width=320:height=240
I have got a green window and mplayer terminal shows me among several informations that errors:

Selected device: Acer CrystalEye webcam
 Capabilites:  video capture  streaming
 supported norms:
 inputs: 0 = Camera 1;
 Current input: 0
 Current format: YUYV
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
v4l2: ioctl set format failed: Invalid argument
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Invalid argument
Error: Cannot set norm!
Selected input hasn't got a tuner!
v4l2: ioctl streamon failed: Protocol error

I would like to know if anyone had success using that webcam with that driver on some softwares as ekiga, kopete, mplayer, among others.


--
Eduardo Ramos
Asterisk Manager
Linux User
www.freedominterface.org
+55 12 81129581
exten=>eduardo,1,hangup()
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