[Linux-uvc-devel] Problems with QC 5000 Pro, Ubuntu 5.1, 2.6.12-10-386

[Matthias J. <lin...@we...>]

Hello there.

I have got a Logitech Quickcam 5000 Pro and want to use it under linux - 
thus I found and downloaded your driver.

I compiled it using Ubuntu Linux 5.1, kernel 2.6.12-10-386, compilation 
and installation worked fine without warnings.
But the driver seems to fail on my configuration.

If I'm connecting the QC 5000, dmesg output is:
=====
[4296804.731000] usb 3-2: new high speed USB device using ehci_hcd and 
address 7[4296805.114000] usbvideo: Probing device 2
[4296805.115000] Format MJPEG found
[4296805.115000] Format Uncompressed found
[4296805.116000] usbvideo: Found a Status endpoint (addr 87).
[4296805.116000] usbvideo: Found UVC device (1.00)
[4296805.117000] usbvideo: Scanning UVC chain: OT 5 <- Unit 4 <- Unit 3 
<- Unit 2 <- IT 1
[4296805.117000] usbvideo: Found a valid video chain (1 -> 5).
[4296805.213000] usbvideo: UVC device initialized.
=====

With your test program posted in 
https://lists.berlios.de/pipermail/linux-uvc-devel/2006-January/000003.html 
using "test /dev/video0" I'm getting the output:
=====
#Device /dev/video0 opened: .
Video format set: width: 640 height: 480 buffer size: 614400
16 buffers allocated.
length: 614400 offset: 0
Buffer 0 mapped at address 0xb7c63000.
length: 614400 offset: 614400
Buffer 1 mapped at address 0xb7bcd000.
length: 614400 offset: 1228800
Buffer 2 mapped at address 0xb7b37000.
length: 614400 offset: 1843200
Buffer 3 mapped at address 0xb7aa1000.
length: 614400 offset: 2457600
Buffer 4 mapped at address 0xb7a0b000.
length: 614400 offset: 3072000
Buffer 5 mapped at address 0xb7975000.
length: 614400 offset: 3686400
Buffer 6 mapped at address 0xb78df000.
length: 614400 offset: 4300800
Buffer 7 mapped at address 0xb7849000.
length: 614400 offset: 4915200
Buffer 8 mapped at address 0xb77b3000.
length: 614400 offset: 5529600
Buffer 9 mapped at address 0xb771d000.
length: 614400 offset: 6144000
Buffer 10 mapped at address 0xb7687000.
length: 614400 offset: 6758400
Buffer 11 mapped at address 0xb75f1000.
length: 614400 offset: 7372800
Buffer 12 mapped at address 0xb755b000.
length: 614400 offset: 7987200
Buffer 13 mapped at address 0xb74c5000.
length: 614400 offset: 8601600
Buffer 14 mapped at address 0xb742f000.
length: 614400 offset: 9216000
Buffer 15 mapped at address 0xb7399000.
Unable to dequeue buffer (5).
=====

I'm getting no output images from the cam, here's the dmesg output:
=====
[4297530.434000] usbvideo: uvc_v4l2_open
[4297530.447000] usbvideo: VIDIOC_QUERYCAP
[4297530.453000] usbvideo: VIDIOC_S_FMT
[4297530.453000] usbvideo: Trying format 0x56595559 (YUYV): 1280x960.
[4297530.531000] usbvideo: VIDIOC_REQBUFS
[4297530.594000] usbvideo: VIDIOC_QUERYBUF
[4297530.633000] usbvideo: uvc_v4l2_mmap
[4297530.693000] usbvideo: VIDIOC_QUERYBUF
[4297530.730000] usbvideo: uvc_v4l2_mmap
[4297530.777000] usbvideo: VIDIOC_QUERYBUF
[4297530.816000] usbvideo: uvc_v4l2_mmap
[4297530.857000] usbvideo: VIDIOC_QUERYBUF
[4297530.903000] usbvideo: uvc_v4l2_mmap
[4297530.940000] usbvideo: VIDIOC_QUERYBUF
[4297530.986000] usbvideo: uvc_v4l2_mmap
[4297531.025000] usbvideo: VIDIOC_QUERYBUF
[4297531.060000] usbvideo: uvc_v4l2_mmap
[4297531.107000] usbvideo: VIDIOC_QUERYBUF
[4297531.108000] usbvideo: uvc_v4l2_mmap
[4297531.109000] usbvideo: VIDIOC_QUERYBUF
[4297531.189000] usbvideo: uvc_v4l2_mmap
[4297531.192000] usbvideo: VIDIOC_QUERYBUF
[4297531.239000] usbvideo: uvc_v4l2_mmap
[4297531.275000] usbvideo: VIDIOC_QUERYBUF
[4297531.276000] usbvideo: uvc_v4l2_mmap
[4297531.318000] usbvideo: VIDIOC_QUERYBUF
[4297531.320000] usbvideo: uvc_v4l2_mmap
[4297531.362000] usbvideo: VIDIOC_QUERYBUF
[4297531.363000] usbvideo: uvc_v4l2_mmap
[4297531.363000] usbvideo: VIDIOC_QUERYBUF
[4297531.363000] usbvideo: uvc_v4l2_mmap
[4297531.406000] usbvideo: VIDIOC_QUERYBUF
[4297531.406000] usbvideo: uvc_v4l2_mmap
[4297531.448000] usbvideo: VIDIOC_QUERYBUF
[4297531.448000] usbvideo: uvc_v4l2_mmap
[4297531.484000] usbvideo: VIDIOC_QUERYBUF
[4297531.485000] usbvideo: uvc_v4l2_mmap
[4297531.532000] usbvideo: VIDIOC_STREAMON
[4297531.982000] usbvideo: > uvc_v4l2_release
[4297532.060000] usbvideo: < uvc_v4l2_release
=====

Could you help me? It's very important to realize an university roboter 
project using the qc 5000.
Thx for your great work!

Regards, Matthias
---
Leipzig, Germany