Re: [PROBLEM] uvcvideo: Failed to query (GET_INFO) UVC control

From: Jeffrin Jose
Date: Sat Dec 14 2019 - 13:04:31 EST

Next message: Paul Cercueil: "Re: [PATCH v3 1/5] clk: Ingenic: Remove unnecessary spinlock when reading registers."
Previous message: MichaÅ MirosÅaw: "[PATCH] mmc: core: avoid blocking CPU for long BKOPS"
In reply to: Laurent Pinchart: "Re: [PROBLEM] uvcvideo: Failed to query (GET_INFO) UVC control"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Mon, Dec 09, 2019 at 03:18:04AM +0200, Laurent Pinchart wrote:
> Hello Jeffrin,
>
> On Sat, Dec 07, 2019 at 11:51:52PM +0530, Jeffrin Jose wrote:
> > hello,
> >
> > i get this output piece from "dmesg -l err" of kernel 5.4.2
> >
> >
> > -------------------x---------------------------x------------------
> > uvcvideo: Failed to query (GET_INFO) UVC control 6 on unit 1: -32 (exp. 1).
> > uvcvideo: Failed to query (GET_INFO) UVC control 7 on unit 1: -32 (exp. 1).
> > -------------------x----------------------------x-----------------
> >
> > Additional information:
> > Linux debian 5.4.2 #17 SMP Sat Dec 7 01:39:12 IST 2019 x86_64 GNU/Linux
> >
> > Relevant file:
> > drivers/media/usb/uvc/uvc_video.c
>
> Does the camera otherwise fail to operate correctly ? Was the problem
> present in older kernel versions, or did it appear with v5.4.2 ? Are the
> above messages output every time you plug the camera (or load the driver
> in case the camera is built in), or only randomly ? What is the exact
> camera model, and could you please send me the lsusb -v output for it
> (running as root if possible) ?
>
i think the camera normally work properly.iam sending this mail
because i was looking for error or errors in kernel. i think it started
appearning in the Linux kernel 5.4.2 for me.this is a built in webcam for
my laptop(ASUS VivoBook). i think this may randomly(not sure) appear.

output files attached
--------------x-------------
$sudo lsusb -v > lsusb.txt
$sudo lsusb -v 2> lsusb-error.txt
-----------x---------------------

some related things...

------------x-----------------x-----------------x--------------
root>cat stats
frames: 2098
packets: 2105431
empty: 1674589
errors: 0
invalid: 0
pts: 1 early, 2097 initial, 2098 ok
scr: 2098 count ok, 2098 diff ok
sof: 0 <= sof <= 2047, freq 1.000 kHz
root>pwd
/sys/kernel/debug/usb/uvcvideo/1-2-1
root>

$sudo dmesg | grep uvc
[sudo] password for jeffrin:
[ 46.558999] uvcvideo: Found UVC 1.00 device USB2.0 VGA UVC WebCam (13d3:5a11)
[ 46.559307] uvcvideo: Failed to query (GET_INFO) UVC control 6 on unit 1: -32 (exp. 1).
[ 46.560068] uvcvideo: Failed to query (GET_INFO) UVC control 7 on unit 1: -32 (exp. 1).
[ 46.563584] uvcvideo 1-6:1.0: Entity type for entity Extension 4 was not initialized!
[ 46.563648] uvcvideo 1-6:1.0: Entity type for entity Processing 2 was not initialized!
[ 46.563660] uvcvideo 1-6:1.0: Entity type for entity Camera 1 was not initialized!
[ 46.565127] usbcore: registered new interface driver uvcvideo
$
------------------x-----------------x-------------------x--------

--
software engineer
rajagiri school of engineering and technology

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Self Powered

Bus 001 Device 002: ID 13d3:5a11 IMC Networks USB2.0 VGA UVC WebCam
Device Descriptor:
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idVendor 0x13d3 IMC Networks
idProduct 0x5a11
bcdDevice 17.02
iManufacturer 3 Azurewave
iProduct 1 USB2.0 VGA UVC WebCam
iSerial 2
bNumConfigurations 1
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Field 1 first: No
Field pattern: Field 1 only
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bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
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bInterfaceSubClass 2 Video Streaming
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bInterfaceSubClass 2 Video Streaming
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iInterface 0
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bEndpointAddress 0x81 EP 1 IN
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bInterval 1
Interface Descriptor:
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bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
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bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
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bEndpointAddress 0x81 EP 1 IN
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bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
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bDescriptorType 1
bcdUSB 2.00
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bDeviceSubClass 0
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bInterfaceSubClass 0
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No power switching (usb 1.0)
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bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x40 0x01
PortPwrCtrlMask 0xff 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0503 highspeed power enable connect
Port 7: 0000.0100 power
Port 8: 0000.0103 power enable connect
Port 9: 0000.0100 power
Port 10: 0000.0100 power
Port 11: 0000.0100 power
Port 12: 0000.0100 power
Device Status: 0x0001
Self Powered
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable

Next message: Paul Cercueil: "Re: [PATCH v3 1/5] clk: Ingenic: Remove unnecessary spinlock when reading registers."
Previous message: MichaÅ MirosÅaw: "[PATCH] mmc: core: avoid blocking CPU for long BKOPS"
In reply to: Laurent Pinchart: "Re: [PROBLEM] uvcvideo: Failed to query (GET_INFO) UVC control"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]