vcview -f yuv -s 320x240 -d /dev/video1 -i 18
> luvcview -f yuv -s 320x240 -d /dev/video1 -i 19
>
> etc all do work.
Have you tried all the frame rates supported by the camera (30, 25, 20, 15, 10
and 5 fps) ? Do 5, 10 and 15 fail, and 20, 25 and 30 work ?
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.bInterfaceSubClass = 1,
> + .bInterfaceProtocol = 0,
> + .driver_info = UVC_QUIRK_RESTRICT_FRAME_RATE },
> /* Genius eFace 2025 */
> { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
>
> | USB_DEVICE_ID_MATCH_INT
top, result will be in dmesg.
> >
> > Testers are welcome.
Thanks for the patch. What do you use it for ?
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an MSI
> WIND U100) and repeadetly switching the webcam on/off (the hardware
> key Fn-F6 to toggle the webcam still works, I can see the webcam in
> and out in lsusb).
>
> Any advise before assuming some kind of hardware failure?
Could you please post the output of
lsus
the image and
transmit it over a longer period of time. Most cameras have very little buffer
memory, and thus require a high bandwidth even at low frame rates. Depending
on the hardware MJPEG encoder, the average bandwidth for a frame will not
match the peak bandwidth requirements.
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Hi Felix,
On Friday 15 April 2011 06:04:23 Felix Shao wrote:
> On Thu, Mar 18, 2010 at 12:50 AM, Laurent Pinchart wrote:
> > On Wednesday 10 March 2010 22:27:20 Michał Górny wrote:
> > > On Thu, 4 Mar 2010 11:31:55 +0100 Laurent Pinchart wrote:
> > > > I don'
None
> Usage Type Data
> wMaxPacketSize 0x0020 1x 32 bytes
> bInterval 0
[snip]
> but does not show the "14 Video" (from
> http://www.ideasonboard.org/uvc/faq/)
>
> ubuntu@ubuntu:$ sudo lsusb -d 1b
ld you please describe your
problem in more details ? What does "no video is received" mean exactly ? Does
the uvcvideo driver print any message to the kernel log when the problem
occurs ?
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gt; pgoff);
> +#endif
> extern int uvc_queue_allocated(struct uvc_video_queue *queue);
> static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
> {
> diff --git a/drivers/media/video/v4l2-dev.c
> b/drivers/media/video/v4l2-dev.c index 498e674..221e73f 100644
> --- a/drivers/media/video/v4l2-dev.c
> +++ b/drivers/media/video/v4l2-dev.c
Please split the patch in two. The first part should be a revert of
c29fcff3daafbf46d64a543c1950bbd206ad8c1c, the second one should be the
uvcvideo code.
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Hi Andrej,
On Friday 22 April 2011 13:38:14 Andrej Gelenberg wrote:
> Hi,
>
> On 04/22/2011 11:31 AM, Laurent Pinchart wrote:
> > lsusb -v -d 06f8:300C
>
> here it is.
Thank you. I've updated the supported devices list, and I'll push a patch to
enable the
r.
VIDIOC_S_EXT_CTRLS lets you set several controls in an atomic way, it won't
help here if the device returns an error.
> Any idea on how I can set V4L2_CID_EXPOSURE_AUTO on uvcvideo driver in
> Ubuntu 10.04 LTS without getting an Input/Output error?
Have you tried setting the control wit
the first device. Please send me the output of
lsusb -v -d 041e:4045
running as root if possible.
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probe -r uvcvideo
modprobe uvcvideo quirks=2
This should get rid of the non compliance message (please check the kernel log
to make sure it does). If that still doesn't help, try quirks=128 instead.
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t; /devices/pci:00/:00:1d.7/usb2/2-8/2-8:1.0/input/input7
> [ 10.905371] usbcore: registered new interface driver uvcvideo
> [ 10.905373] USB Video Class driver (v1.0.0)
That looks good.
Does the uvcvideo driver print any additional mess
s a manual focus control only.
You can tune it with any V4L2 application that supports controls, such as
uvcdynctrl, guvcview, v4l2-ctl, yavta, ...
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ong (*ioctl) (struct file *, unsigned int, unsigned long);
> long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
> + unsigned long (*get_unmapped_area) (struct file *, unsigned long,
> + unsigned long, u
PRIORITY = 3 /* works */
> };
>
> Fortunately, the mode I wanted, aperture priority, works.
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LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so /usr/bin/skype
Search 'libv4l skype' on Google for additional information.
> P.S. I'm a novice at Linux
>
> thank you in advance and good day to you
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Hi Sebastian,
On Friday 29 April 2011 21:17:07 Sebastian Arcus wrote:
> On 04/29/2011 09:56 AM, Laurent Pinchart wrote:
> > On Wednesday 27 April 2011 10:42:14 Paulo Assis wrote:
> >>> 1. Would this be fairly specific to the Logitech QuickCam 9000, or is a
> >>&g
provide a standard control for this. Some cameras support
controlling the LED manually, and implements that using UVC extension units.
Without manufacturer documentation it might be difficult to find out how to
control the LED, but trial/error is possible (be warned that this could in
theory b
me the lsusb -v output (running as root if possible) for
your webcam. If it isn't, the uvcvideo driver won't be able to support it.
Other drivers might, you should then ask for help on the linux-media mailing
list.
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_
ers
> than in the stream->sequence.
>
> I used "guvcview -d /dev/video0" to start the stream, and closed the GTK
> window to stop the stream.
>
> Feel free to test this patch with your webcams are report back your
> dmesg output (with framerate and the duration
ebcams which have both problems ? (not making FID toggle, and
> not specifying EOF ?)
Not that I know of.
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differences inside a frame */
+ u16 scr_sof;/* SCR.SOF of the last
packet */
+ u32 scr_stc;/* SCR.STC of the last
packet */
+ } frame;
+ } stats;
};
enum uvc_device_state {
@@ -566,6 +599,7 @@ str
Signed-off-by: Laurent Pinchart
---
drivers/media/video/uvc/uvc_video.c | 196 ++-
drivers/media/video/uvc/uvcvideo.h | 39 +++
2 files changed, 234 insertions(+), 1 deletions(-)
Hi Yann,
Here's a second version of the patch that prints the estimate
s list. Could you
please tell me whether the device is a standalone webcam or integrated into a
laptop, and give me the webcam/laptop commercial brand and model ?
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e to try out. Can anyone offer
> some insights into what I am missing? The revision I am interested in is a
> branch from the main line. I also tried pulling in the main line where the
> branch occurred with the intent of patching in the changes, but I r
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el #44421
Could you please send me the output of lsusb -v for your device (running as
root if possible) ? I'll then update the supported devices list.
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reply. The patches look good
to me. Could you please give me your Signed-off-by line for both of them ?
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*/
> + list_for_each_entry(entity, &chain->entities, chain) {
> unsigned int i;
>
> if (UVC_ENTITY_TYPE(entity) != UVC_VC_EXTENSION_UNIT ||
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Hi Stephan,
On Wednesday 22 June 2011 00:55:36 Laurent Pinchart wrote:
> On Wednesday 01 June 2011 00:24:21 Stephan Lachowsky wrote:
> > The search for matching extension units fails to take account of the
> > current chain. In the case where you have two distinct video c
to switch on the webcam, the laptop freezes
Ouch.
> (btw, I'm using Debian Squeeze, kernel 2.6.38-2-686).
> Is such a webcam already supported? Or may I ask to enlist it for
> the development?
First of all, could you please send me the output of
lsusb -v -d 04f2:b26d
running as
x27;m using Linux Mint 10.
Thank you for the report.
Could you please send me the output of
lsusb -v -d 1e4e:0102
running as root if possible ?
Could you please also give me the commercial device name and brand ?
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ing controls will turn the LED on or off (but you never know). Can you
control it manually in Windows ?
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lease let me know the procedure to build this driver to my kernel.
You can try to compile the whole V4L subsystem using the media_build git tree
from git.linuxtv.org. Instructions are available at
http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-
DVB_Device_Drivers.
e.
>
>
> I tried to do the same thing for QVGA -YUV, and then I was able to capture
> the image. I got the following alerts:
>
>
> SIZE = 153600
>
> PSIZE = 512
>
>
> What could be causing this...
Do you have other connected USB devices that could use the USB
ure write
> all needed settings in the eeprom of the device (webcam,...).
> If you plug your device in MacOSX or Windows Vista/7, in any UVC ready
> OS, you will get same result - max resolution 640x480.
> If you need to install some thing to get more, then it is not UVC
> device, at
d hub
> [10458.422485] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (18e3:9512)
> [10458.436312] input: USB 2.0 Camera as
> /devices/pci:00/:00:1d.1/usb7/7-2/7-2:1.0/input/input12
> [10462.300114] usb 7-2: USB disconnect, address 3
> [10462.304073] cannot submit datapipe for urb 0, error -19: no device
>
> Also, sometimes I get endless "unable to enumerate USB device" messages
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: Dev 3, If 0, Class=HID, Driver=usbhid, 1.5M
> |__ Port 3: Dev 3, If 1, Class=HID, Driver=usbhid, 1.5M
> |__ Port 4: Dev 4, If 0, Class=HID, Driver=usbhid, 1.5M
>
> /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/4p, 480M
>
> |__ Port 3: Dev 2, If 0, Class=st
eout expired
before the transfer completed, and no other error was reported by HC."
I'm surprised to see this error code reported in a URB completion handler.
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pec
producing a clean implementation will be pretty difficult.
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Hi Julian,
On Saturday 18 June 2011 16:49:18 Julian Sikorski wrote:
> W dniu 2011-06-18 16:44, Laurent Pinchart pisze:
> > On Monday 16 May 2011 02:13:35 Julian Sikorski wrote:
> >> Hi,
> >>
> >> I would like to report that the said device seems to work on Fed
s wrongly, is unwanted.
Thank you for the information. The camera device (19b4:0104) descriptors would
have been enough, but too much information is (usually) better than too
little.
I've updated the supported devices list.
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Hi Sjoerd,
On Saturday 18 June 2011 18:19:45 Sjoerd Simons wrote:
> On Sat, 2011-06-18 at 17:28 +0200, Laurent Pinchart wrote:
> > Thank you for the patches, and sorry for my late reply. The patches look
> > good to me. Could you please give me your Signed-off-by line for b
a recent kernel. 2.6.14 is more than 5 years old.
> El mié, 22-06-2011 a las 02:41 +0200, Laurent Pinchart escribió:
> > On Tuesday 14 June 2011 18:28:02 Jorge Yesid Rios Ortiz wrote:
> > > Hi:
> > >
> > > I have a problem when I tried to use this web-cam in m
to use it in skype.
> Thanks for you support! :) I attach output of lsusb -v run as su.
Thank you. The device is already included in the supported devices list.
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his is kernel 2.6.39 on gentoo with libv4l-0.8.3
>
> Any advice would be appreciated.
I'll answer in the mail thread.
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o an "Exposure, auto priority" checkbox.
>
> Frame rates drop dramatically in manual mode (to 10-15fps from 30).
>
> But I can't really complain at this point - the corrupt frames are gone.
> Will that quirk be added to the driver (usb id is: 0408:2fb1)?
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>
> > I have tried adding the other quirks to the FID quirk, but haven't seen
> > any improvement with any others.
> >
> > Thanks for you help -
> >
> > Carl
>
> Webcam returns error in the middle of some frame, theoretically we
> should drop c
me. But current uvcvideo just gather data and
> > assume the cam will resend previous parts to complete the frame.
> >
> > Try attached patch additionally to my previous one.
>
> Hi,
>
> its very hard to say if this helps or not. There are still corrupt
> frames,
sembled this way are complete and uncorrupted.
>
> So somehow some headers are disappearing?
That's totally against the UVC specs. We could work around it in the driver if
there was a reliable way to detect that a frame doesn't start with a header,
but that's not pos
Hi Alexey,
On Friday 24 June 2011 20:25:03 Alexey Fisher wrote:
> Am Freitag, den 24.06.2011, 20:08 +0200 schrieb Laurent Pinchart:
> > On Tuesday 14 June 2011 09:39:47 Alexey Fisher wrote:
> > > Am Montag, den 13.06.2011, 22:48 -0700 schrieb Carl Michal:
> > > >
aked ehci-hcd to allow up to 90% isoc bandwidth (cc62a7eb
> "USB: EHCI: Allow users to override 80% max periodic bandwidth") I can
> capture two video sources -- PAL 720x576 YUV422 @25fps + NTSC 640x480
> YUV422 @30fps simultaneously. Hooray!
>
> Signed-off-by: Kirill Smelkov
Hi Kirill,
On Saturday 23 July 2011 00:25:20 Kirill Smelkov wrote:
> On Sat, Jul 23, 2011 at 12:03:57AM +0200, Laurent Pinchart wrote:
> > On Friday 22 July 2011 16:47:22 Kirill Smelkov wrote:
> > > [ Cc'ing Andrew Morton -- Andrew, could you please pick this patch, i
roduct:
> VF0415 Live! Cam Vid. IM Ultra)
>
> Manufacturer: Creative Technology Ltd. (Creative Labs?)
>
> Kernel version: 2.6.37.6
>
> If any other information is needed, please let me know.
Could you please send me the output of
lsusb -v -d 041e:4071
running as root if
#x27;ve updated the suppported devices list.
> Thank You very much for your work.
You're welcome.
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ry.
> There was no map allocated to be freed...
> Device /dev/video0 closed
> Buffers freed
> vars freed
>
>
> Image: http://flic.kr/p/9ZLRNb
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ossible ?
> Thanks for everything.
> Sorry for my very approximate english.
> /(The normal salutation here with a friendly formulation, i have no idea
> how to write that)/ ;-)
Don't worry :-)
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irk?
Try loading the driver with
modprobe uvcvideo quirks=0x80
Could you please send me the output of lsusb -v (running as root if possible)
for your webcam ?
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control : -32 (exp.
> 26).
Please try to load the uvcvideo module with
modprobe uvcvideo quirks=2
If the module is already loaded, unload it with modprobe -r uvcvideo before
loading it with quirks=2.
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hat I must to be for to
> solve this error.
>
> If you have some idea about how to proceeded I will appreciate very
> much.
That's always the problem with vendor-provided kernels, and that's why I
always try to use a mainline kernel and get support for my bo
Hi Chris,
On Monday 25 July 2011 11:52:07 Chris Jones wrote:
> On 24/07/11 00:39, Laurent Pinchart wrote:
> > On Thursday 30 June 2011 17:24:59 Chris Jones wrote:
> >> How do I go about setting the FIX_BANDWIDTH quirk?
> >
> > Try loading the driver with
> >
Hi Todor,
On Sunday 24 July 2011 23:30:58 Todor Nickolov wrote:
> Hello Laurent,
>
> I attach the output.
Thank you. I've updated the supported devices list.
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Hi Chris,
On Tuesday 26 July 2011 11:40:56 Chris Jones wrote:
> On 26/07/11 00:44, Laurent Pinchart wrote:
> > On Monday 25 July 2011 11:52:07 Chris Jones wrote:
> >> On 24/07/11 00:39, Laurent Pinchart wrote:
> >>> Try loading the driver with
> >>
make use of the video device exported by webcam. How can i do to
> simulate the board as a usb camera device? Is there any sample i can
> reference to? Thanks.
The only sample userspace application I know of is called uvc-gadget and
available at http://git.ideasonboard.org/.
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Hi Vincent,
On Wednesday 27 July 2011 01:24:53 Vincent wrote:
> I would like to confirm that Microsoft LifeCam HD-5000 with a device
> ID of 045e:076d is tested and working!
Thank you for the report. I've updated the supported devices list.
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that implements MPEG2-TS :-S
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quick grep in drivers/usb shows only one driver returning
that error code, and that's for a gadget device, not a host controller.
I suspect an issue in your board's USB host controller driver. What ARM9 SoC
are you using ? Can you try upgrading it to a mo
Is this a bug in the uvcvideo driver? Or in the camera firmware?
Probably in the camera firmware. The device queries the camera for default and
current values, and I wouldn't be surprised if the camera reported a default
value that it doesn't use as a default.
> What is the recomme
Hi Alexey,
On Monday 01 August 2011 08:12:07 Alexey Rempel wrote:
> Am 31.07.2011 18:28, schrieb Laurent Pinchart:
> > On Saturday 30 July 2011 15:08:14 Michael Stapelberg wrote:
> >> Hi,
> >>
> >> I recently bought a Creative Live! Cam Socialize HD (ID 041e:4
esink
> 3) Stop video
> 4) uvcdynctrl -s 'Exposure, Auto' 1
> 5) uvcdynctrl -s 'Exposure (Absolute)' 625
> 6) All video from now on is correct
Maybe the webcam just ignores all set control requests before the first
stream-on ?
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__
d every time you plug in your camera, right?
To be honest I don't use webcams for video conferencing much :-) When I do I
just leave the default control values, that works pretty well on the webcams I
use.
Maybe libv4l could help there. There has been some discussions about adding
control
control when Exposure, Auto is
set to 3 fails with EIO, and succeeds if Exposure, Auto is set to 1.
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osts 10 times
> more.
>
> Video is capturing excelently (1280x720@24) and audio also (via alsa).
>
> Thank you again.
You're welcome. I'm always happy to hear that the driver works fine for at
least a couple of users :-)
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Hi Carl,
On Wednesday 03 August 2011 08:29:56 Carl Michal wrote:
> On Tue, 2 Aug 2011, Laurent Pinchart wrote:
> > On Tuesday 02 August 2011 07:29:47 Carl Michal wrote:
> >> Hi Laurent,
> >>
> >> I understand there were changes made in the exposure settings
&g
all going well,
> but I see the picture flip over 180 degree.
>
> Can you help me?
Flipping the image is handled by libv4l in userspace. Is the image correct if
you use a libv4l-aware application (or LD_PRELOAD libv4lconvert into luvcview
or Cheese)
OAD=/usr/lib64/libv4lconvert.so.0 luvcview -f yuv'
>
> but any effect
Could you please send me the lsusb -v output for your camera, as well as the
dmidecode output ?
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Hi Dusan,
On Thursday 04 August 2011 13:14:57 Dusan Bruncko wrote:
> Dear Laurent,
>
> my camera: USB2.0 UVC 2M WebCam
>
> and please look attachment.
Thanks, but I've asked for lsusb -v (run as root if possible), not lspci :-)
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Hi Dunsan,
On Thursday 04 August 2011 13:23:34 Dusan Bruncko wrote:
> Sorry,
>
> lsusb output is in attachment.
Thanks. I've forwarded the information to the libv4l author. The next version
should support your webcam.
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to update it to the latest kernel, I can handle that.
>
> (I am attempting to fix a uvc-on-arm corruption issue)
Here's the latest version, already rebased on top of v3.0. I haven't tested it
for that kernel though.
I've CCed the linux-uvc-devel list as this can be of interest t
e only 3 frames. And after this attach dmesg output as
> >> well.
> >>
> >> Regards,
> >>
> >> Alexey
>
> In dmesg you can see this part:
> [11459.512425] uvcvideo: UVC non compliance - GET_DEF(PROBE) not
> supported. Enabling workarou
I specification
(http://linuxtv.org/downloads/v4l-dvb-apis/) describes the kernel <->
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jpeg decoders can't take mjpeg from camera.
>
> Thanks again for great linux driver!
You're welcome. Thank you for contributing to Linux UVC support.
> This tool http://github.com/erlyvideo/jpeg uses turbojpeg library to
> decode mjpeg stream to y
v -d 090c:3717
running as root if possible ?
Does the webcam come integrated in a laptop ? If so, what's its model name ?
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et compressed stream.
>
> should I select something like V4L2_PIX_FMT_H264 ?
You can't, at least for now. The uvcvideo driver doesn't support H.264.
Stephan's patches might be enough to get very basic H.264 support for some
webcams, but I'm not even su
support.
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Hi Max,
On Wednesday 31 August 2011 00:06:20 Max Lapshin wrote:
> On Wed, Aug 31, 2011 at 2:03 AM, Laurent Pinchart wrote:
> > You can't, at least for now. The uvcvideo driver doesn't support H.264.
> > Stephan's patches might be enough to get very basic H.264 sup
oment.
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Hi Max,
On Wednesday 31 August 2011 00:12:50 Max Lapshin wrote:
> On Wed, Aug 31, 2011 at 2:07 AM, Laurent Pinchart wrote:
> > On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
> >> By the way, have you seen document
> >> http://www.usb.org/developers/devclass_docs
y fix the
streams. There's always a chance that fragmented packets that contains no
header will start with data that looks like a header. You won't be able to
find a buller-proof solution.
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> [ 4068.846762] uvcvideo: Failed to query (129) UVC probe control : -32
> (exp. 26).
> [ 4068.846769] uvcvideo: Failed to initialize the device (-5).
> [ 4068.847508] usbcore: registered new interface driver uvcvideo
> [ 4068.847512] USB Video Clas
Hi Pierre,
On Wednesday 31 August 2011 08:36:19 Pierre Gronlier wrote:
> On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart wrote:
> > On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
> >> By the way, have you seen document
> >> http://www.usb.o
Hi Alexey,
On Wednesday 31 August 2011 10:04:25 Alexey Fisher wrote:
> Am 31.08.2011 08:36, schrieb Pierre Gronlier:
> > On Wed, Aug 31, 2011 at 1:07 AM, Laurent Pinchart wrote:
> >> On Saturday 27 August 2011 11:50:55 Max Lapshin wrote:
> >>> By the way, hav
ly
ignored all my e-mails when I asked them for a camera sample.
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work out of the box with uvc driver on
> > windows?
>
> Currently I see other problem: I can't find patchset in mailing list.
> So it is hard to discuss if B990 is UVC or not UVC.
Could someone please post the lsusb -v output for thr B990 ?
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Laurent Pinchart
_
EG
> */ #define V4L2_PIX_FMT_DV v4l2_fourcc('d', 'v', 's', 'd') /*
> 1394 */ #define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E',
> 'G') /* MPEG-1/2/4*/ +#define V4L2_PIX_FMT_H264
for his Signed-off-by line and I will push it to v3.2.
I still need to review the second patch properly, that's on my TODO list.
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Hi Alexey,
On Monday 05 September 2011 17:48:42 Alexey Fisher wrote:
> Am 31.08.2011 00:32, schrieb Laurent Pinchart:
> > On Thursday 25 August 2011 09:44:10 Alexey Fisher wrote:
> >> Hi Laurent,
> >>
> >> are there any reason why uvc_video_decode_start do no
Hi Alexey,
On Wednesday 07 September 2011 08:14:45 Alexey Fisher wrote:
> Am 06.09.2011 17:24, schrieb Laurent Pinchart:
> > On Monday 05 September 2011 17:48:42 Alexey Fisher wrote:
> >> Am 31.08.2011 00:32, schrieb Laurent Pinchart:
> >>> On Thursday 25 August 201
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