Re: [linux-uvc-devel] Acer Usb Camera 5986:055a recogniced but no /dev/video0 entry

[Arno W. <rag...@gm...>]

I just apllied the patch against the linux-debian-sources-3.19.3 on
funtoo and to my surprise it worked with cheese and VLC but not with
guvcview.


Here is the relevant output of dmesg:

[    6.581699] usb 2-8: New USB device found, idVendor=5986, idProduct=055a
[    6.581700] usb 2-8: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[    6.581701] usb 2-8: Product: Integrated Camera
[    6.581702] usb 2-8: Manufacturer: Generic
[    6.581703] usb 2-8: SerialNumber: 200901010001
[    6.727883] media: Linux media interface: v0.10
[    6.743621] Linux video capture interface: v2.00
[    6.777350] input: Video Bus as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input11
[    6.777441] [drm] Initialized i915 1.6.0 20141121 for 0000:00:02.0 on minor 0
[    6.799878] uvcvideo: Found UVC 1.00 device Integrated Camera (5986:055a)
[    6.802677] uvcvideo: Failed to register entity for entity 3
[    6.802678] uvcvideo: Failed to register entites (-22).
[    6.802727] input: Integrated Camera as
/devices/pci0000:00/0000:00:14.0/usb2/2-8/2-8:1.0/input/input12
[    6.802820] usbcore: registered new interface driver uvcvideo
[    6.802821] USB Video Class driver (1.1.1)

As you can see there are still 2 error messages about failed
registration of entities, but at least it works.

Thanks a lot for your help!

regards,
Arno

P.S.: I also attached the output of the command "lsusb -v -d 5986:055a".






On 6/7/15, Samir Ibradžić <sib...@gm...> wrote:
>
> Lenovo E455 here, same Acer 5986:055a camera inside. I applied the
> attached patch, which is just an ugly hack that ignores "unknown entity"
> & "entity X already in chain" errors @ uvc_trace @ uvc_driver.c. I was
> hoping that this would help me debug the thing, but to my utter
> surprise, camera actually worked. I've tested it against cheese, VLC &
> skype, all but 960x540 resolution worked just fine.
>
> Devs, please take a look in the traces, we may need some new quirk for
> cameras like this one... I've seen the similar thing happening for some
> other UVC cameras on the lists.
>
> S
>
> On 2015年06月07日 03:55, arno wilhelm wrote:
>>
>>> Last time I wrote to this list was more than 7 years ago, so had to
>>> register from scratch. Managed to make this 5986:055a cam work, just
>>> checking if replying to old thread would work to provide more info...
>>
>> Cool!! And what did u do in order to get this camera to work?
>>
>>
>>>
>>> S
>>>
>>> On 2015年05月29日 19:03, ragadinks@gm... wrote:
>>>
>>>> Hello,
>>>>
>>>> I am trying to set up a new Lenovo Thinkpad L450 and everything seems
>>>> to work fine, except the build-in usb camera.
>>>> When loading the the uvcvideo module with "modprobe -v uvcvideo" I get
>>>> following message:
>>>>
>>>> [ 1547.423473] media: Linux media interface: v0.10
>>>> [ 1547.427844] Linux video capture interface: v2.00
>>>> [ 1547.432887] uvcvideo: Found UVC 1.00 device Integrated Camera
>> (5986:055a)
>>>> [ 1547.432994] uvcvideo: No valid video chain found.
>>>> [ 1547.433061] usbcore: registered new interface driver uvcvideo
>>>> [ 1547.433063] USB Video Class driver (1.1.1)
>>>>
>>>>
>>>> The driver seems to find the integrated camera but gives the error
>>>> message "No valid video chain found.". After that everything seems to
>>>> be ok again except that there is no /dev/video0 entry made in the
>>>> filesystem.
>>>>
>>>> I know that this camera is not listed in the list of supported devices
>>>> (http://www.ideasonboard.org/uvc/#devices), but nevertheless I wonder
>>>> if somebody here can tell me if there is a chance that this camera
>>>> will be supported in near future or if there is a way I possibly can
>>>> help myself ?
>>>>
>>>> Thanks and regards,
>>>> Arno
>>>>
>>>>
>>>> P.S.:  I attached the output of dmesg, uname and lsusb to  this
>> email.Welcome to the Lin...@li...
>> <mailto:Lin...@li...> mailing list!
>>>
>>>
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>


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