[M560x-driver-support] How to help debug - ALi Corp. USB 2.0 Q-tec Webcam 300 (ID 0402:5603)

[Peter K. <pet...@gm...>]

Hello and thanks for the work on the M560x driver!

First, I have compiled and installed the driver from svn rev. 114.

I have an ASUS A6000Ne laptop with a built in ALi Corp. USB 2.0 Q-tec
Webcam 300 (ID 0402:5603). The driver appears to load fine (dmesg output
below) and /dev/vedeo0 is created.

My webcam is located on:
Bus 001 Device 003: ID 0402:5603 ALi Corp. USB 2.0 Q-tec Webcam 300

-------- dmesg output --------
Linux video capture interface: v2.00
m560x_core.c: usb_m560x_init - M560x-based WebCam driver startup
m560x_core.c: m560x_probe - M560x-based WebCam connected
m5603_mt9v011.c: [m5603_probe_mt9v011:366] probe mt9v011 sensor id ff ff
m5603_ov7640.c: [m5603_probe_ov7640:170] probe ov7640 sensor id 00 00
m5603_ov7640.c: [m5603_probe_ov7640:172] detected ov7640 sensor
m560x_core.c: m560x_probe - Ali_M560x WebCam driver is now controlling
video device 0
usbcore: registered new interface driver m560x
m560x_core.c: 0.4.0:Ali M560x Webcam Driver
-------- end of dmesg output --------


So far to test my webcam I have been using tvtime.
Running tvtime-scanner returns the following output (after about 30seconds):

-------- tvtime-scanner output --------
Scanning using TV standard NTSC.
videoinput: Card refuses to set its input.
Please post a bug report to http://tvtime.net/
indicating your card, driver, and this error message: Input/output error.
videoinput: Driver won't tell us its norm: Input/output error
videoinput: Can't get tuner info: Input/output error

     Your capture card driver: m560x [Ali M560x-based USB 
Camera/usb-0000:00:1d.7-6/1024]
     does not support studio-quality colour images required by tvtime.
     This is a hardware limitation of some cards including many
     low-quality webcams.  Please select a different video device to use
     with the command line option --device.

     Message from the card was: Input/output error
-------- end of tbtime-scanner output --------


Running tvtime results in a black window opening, the computer working 
very hard for 30seconds, and then the black windows changing to a 
generic no-signal blue background with the following writing:

"No video source" - top right corner
"No signal" - middle
"m560x: Input/output error" - bottom left
"cannot open capture device /dev/video0" - bottom left


I am happy to offer my time and computer for debugging. Is there any 
output that you are looking for that I could include?

Thanks

Peter