Greetings,
Here�s another one with short frame buffers on an OHCI controller... Looks
like we have a bug on our hand. Seems to be the same problem as Norbert
Preinings�.
- Nemosoft
-----FW: <[EMAIL PROTECTED]>-----
Date: Sun, 27 May 2001 11:07:54 +0200 (MEST)
From: Riccardo Sibilia <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: ... some troubles with the 7.0 driver ...
Hi!
... so that's my last resort after trying quite everything ;-)
1st of all thanks so much for providing this great driver to the linux
community (it's not just meant as a nice way to start a problem report
e-mail :-) )
I've been using your pwc(+x) driver in the 6.3 and 7.0 version with
kernel 2.4.3 and it worked perfectly. Passing to 2.4.4 broke
something... with the 2.4.5 kernel is not working, as well (giving the
same type of error as 2.4.4). I'm now on 2.4.5-ac1... (same problem).
My configuration:
- ASUS P5A mb (ALi chipset with an ohci USB controller), AMD K6-II
processor
- SuSE 7.1 distribution (w/ "handmade" kernel)
- Philips Vestra Scanner WebCam
- adapted usbmgr to load the pwc modules through a script with
parameters...
The "facts":
trying to open the cam using xawtv or camstream (nice software, btw)
fails. The same camera works perfectly on my Linux notebook using all
the kernels mentioned (same packages installed as on the desktop). The
notebook has an Intel PIIX4 chipset and an uhci style USB controller.
I've tryied several buffer, resolution and fps configurations.
... hope I could provide enough information to help track the problem.
In case I can help in any way, let me know. BTW, I've some experience in
coding, so I can look at some aspects there, as well, if this would
help... (but perhaps it is just some trivial problem and I do not need
to...)
Cheers
Rick
The Log-File:
May 27 10:41:42 locarno kernel: usb-ohci.c: USB OHCI at membase
0xc8919000, IRQ 9
May 27 10:41:42 locarno kernel: usb-ohci.c: usb-00:02.0, Acer
Laboratories Inc. [ALi] M5237 USB
May 27 10:41:42 locarno kernel: usb.c: new USB bus registered, assigned
bus number 1
May 27 10:41:42 locarno kernel: hub.c: USB hub found
May 27 10:41:42 locarno kernel: hub.c: 2 ports detected
May 27 10:41:42 locarno kernel: usb-ohci.c: v5.2 Roman Weissgaerber
<[EMAIL PROTECTED]>, David Brownell
May 27 10:41:42 locarno kernel: usb-ohci.c: USB OHCI Host Controller
Driver
May 27 10:41:42 locarno kernel: hub.c: USB new device connect on bus1/2,
assigned device number 2
May 27 10:41:42 locarno kernel: usb.c: USB device not accepting new
address=2 (error=-110)
May 27 10:41:42 locarno kernel: usb.c: registered new driver audio
May 27 10:41:42 locarno kernel: audio.c: v1.0.0 Alan Cox
<[EMAIL PROTECTED]>, Thomas Sailer ([EMAIL PROTECTED])
May 27 10:41:42 locarno kernel: audio.c: USB Audio Class driver
May 27 10:41:42 locarno kernel: hub.c: USB new device connect on bus1/2,
assigned device number 3
May 27 10:41:42 locarno kernel: usbaudio: device 3 audiocontrol
interface 1 has 1 input and 0 output AudioStreaming interfaces
May 27 10:41:42 locarno kernel: usbaudio: device 3 interface 2
altsetting 0 FORMAT_TYPE descriptor not found
May 27 10:41:42 locarno kernel: usbaudio: device 3 interface 2
altsetting 1: format 0x00000010 sratelo 44100 sratehi 44100 attributes
0x00
May 27 10:41:42 locarno kernel: usbaudio: device 3 interface 2
altsetting 2: format 0x00000010 sratelo 22050 sratehi 22050 attributes
0x00
May 27 10:41:42 locarno kernel: usbaudio: device 3 interface 2
altsetting 3: format 0x00000010 sratelo 11025 sratehi 11025 attributes
0x00
May 27 10:41:42 locarno kernel: usbaudio: device 3 interface 2
altsetting 4: format 0x00000010 sratelo 8000 sratehi 8000 attributes
0x00
May 27 10:41:42 locarno kernel: usbaudio: constructing mixer for
Terminal 3 type 0x0101
May 27 10:41:42 locarno kernel: usbaudio: workaround for broken Philips
Camera Microphone descriptor enabled
May 27 10:41:43 locarno kernel: usb_audio_parsecontrol: usb_audio_state
at c7bb4fe0
May 27 10:41:43 locarno usbmgr[301]: vendor:0x471 product:0x30c
May 27 10:41:43 locarno usbmgr[301]: class:0xa subclass:0xff
protocol:0x0
May 27 10:41:43 locarno usbmgr[301]: USB device is matched the
configuration
May 27 10:41:43 locarno usbmgr[301]: "audio" was loaded
May 27 10:41:44 locarno kernel: Linux video capture interface: v1.00
May 27 10:41:44 locarno kernel: pwc Philips PCA645/646 + PCVC675/680/690
+ PCVC730/740 webcam module version 7.1 P5 (UP) loaded.
May 27 10:41:44 locarno kernel: pwc Also supports Askey VC010 cam.
May 27 10:41:44 locarno kernel: pwc Default framerate set to 5.
May 27 10:41:44 locarno kernel: pwc Default image size set to cif
[352x288].
May 27 10:41:44 locarno kernel: pwc Number of image buffers set to 4.
May 27 10:41:44 locarno kernel: pwc Number of frame buffers set to 2.
May 27 10:41:44 locarno kernel: usb.c: registered new driver Philips
webcam
May 27 10:41:44 locarno kernel: pwc Philips PCVC690K (Vesta Scanner) USB
webcam detected.
May 27 10:41:44 locarno kernel: pwc Registered as /dev/video0.
May 27 10:41:44 locarno kernel: pwc Philips webcam decompressor routines
version 7.0 loaded.
May 27 10:41:44 locarno kernel: pwc Supports PCA645/646, PCVC675/680/690
and PCVC730/740.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 645.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 646.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 675.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 680.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 690.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 730.
May 27 10:41:44 locarno kernel: pwc Adding decompressor for model 740.
May 27 10:41:44 locarno usbmgr[301]: start
/etc/usbmgr/vendor/0471/030c/script
....
....
....
when opening the device:
May 27 10:43:45 locarno kernel: pwc Frame buffer underflow (30264
bytes); discarded.
May 27 10:43:45 locarno kernel: pwc Frame buffer underflow (30246
bytes); discarded.
May 27 10:43:46 locarno kernel: pwc Frame buffer underflow (30246
bytes); discarded.
May 27 10:43:46 locarno kernel: pwc Frame buffer underflow (29973
bytes); discarded.
May 27 10:43:46 locarno kernel: pwc Frame buffer underflow (30264
bytes); discarded.
May 27 10:43:46 locarno kernel: pwc Frame buffer underflow (30246
bytes); discarded.
May 27 10:43:46 locarno kernel: pwc Frame buffer underflow (30246
bytes); discarded.
May 27 10:43:47 locarno kernel: pwc Frame buffer underflow (29973
bytes); discarded.
...
...
...
May 27 10:43:54 locarno kernel: pwc Closing video device: 43 frames
received, dumped 0 frames, 43 frames with errors.
--
Riccardo Sibilia [EMAIL PROTECTED]
Inst. fuer militaerische Sicherheitstechnik http://www.ims.ee.ethz.ch/
Auf der Mauer 2 Tel. +41 1 252 6260
8001 Zurich / Switzerland Fax. +41 1 252 1667
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