linux-kernel - uvcvideo: Unknown video format,00000032-0002-0010-8000-00aa00389b71

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Message-ID: <8f7d4aef-84f7-ae22-8adc-cba4fa881675@molgen.mpg.de>
Date:   Tue, 20 Mar 2018 13:20:14 +0100
From:   Paul Menzel <pmenzel+linux-media@...gen.mpg.de>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        it+linux-media@...gen.mpg.de
Subject: uvcvideo: Unknown video format,00000032-0002-0010-8000-00aa00389b71

Dear Linux folks,


On the Dell XPS 13 9370, Linux 4.16-rc6 outputs the messages below.

```
[    2.338094] calling  uvc_init+0x0/0x1000 [uvcvideo] @ 295
[    2.338569] calling  iTCO_wdt_init_module+0x0/0x1000 [iTCO_wdt] @ 280
[    2.338570] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[    2.338713] iTCO_wdt: Found a Intel PCH TCO device (Version=4,
TCOBASE=0x0400)
[    2.338755] uvcvideo: Found UVC 1.00 device Integrated_Webcam_HD 
(0bda:58f4)
[    2.338827] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[    2.338851] initcall iTCO_wdt_init_module+0x0/0x1000 [iTCO_wdt] 
returned 0 after 271 usecs
[    2.340669] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was 
not initialized!
[    2.340670] uvcvideo 1-5:1.0: Entity type for entity Extension 7 was 
not initialized!
[    2.340672] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was 
not initialized!
[    2.340673] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not
initialized!
[    2.340736] input: Integrated_Webcam_HD: Integrate as
/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/input/input9
[    2.341447] uvcvideo: Unknown video format
00000032-0002-0010-8000-00aa00389b71
[    2.341450] uvcvideo: Found UVC 1.00 device Integrated_Webcam_HD 
(0bda:58f4)
[    2.343371] uvcvideo: Unable to create debugfs 1-2 directory.
[    2.343420] uvcvideo 1-5:1.2: Entity type for entity Extension 10 was 
not initialized!
[    2.343422] uvcvideo 1-5:1.2: Entity type for entity Extension 12 was 
not initialized!
[    2.343423] uvcvideo 1-5:1.2: Entity type for entity Processing 9 was 
not initialized!
[    2.343424] uvcvideo 1-5:1.2: Entity type for entity Camera 11 was 
not initialized!
[    2.343472] input: Integrated_Webcam_HD: Integrate as
/devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.2/input/input10
[    2.343496] usbcore: registered new interface driver uvcvideo
[    2.343496] USB Video Class driver (1.1.1)
[    2.343501] initcall uvc_init+0x0/0x1000 [uvcvideo] returned 0 after 
5275 usecs
```

Please tell me, what I can do to improve the situation.


Kind regards,

Paul


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