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gspca_kinect2: probe failed with error -22 #7

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BOFH2k opened this issue May 31, 2020 · 5 comments · May be fixed by #8
Open

gspca_kinect2: probe failed with error -22 #7

BOFH2k opened this issue May 31, 2020 · 5 comments · May be fixed by #8

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@BOFH2k
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BOFH2k commented May 31, 2020 •
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Similar probing issue to #3 (even after adding the CFLAG from #6, fixing the Makefile and properly inserting the modules) with kernel 5.4.0-33-generic in Ubuntu 20.04:

[ 2876.003031] gspca_main: video_register_device err -22
[ 2876.003076] gspca_kinect2: probe of 11-2.1:1.0 failed with error -22

Details:
dmesg.txt

The Kinect v2 for Windows hardware work fine in Windows 10 and the simple libk4w2 libk4w2 test script runs fine as well, while the opengl test script fails:

libk4w2/src/driver_v4l2.c:50 Cannot identify '/dev/video0'; No such file or directory
@BOFH2k BOFH2k mentioned this issue May 31, 2020
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@thamma
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thamma commented Jun 1, 2020 •
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Thanks for posting.

After loading several kernel modules (including videobuf2-v4l2, videodev, videobuf2_vmalloc, videobuf2-common, videobuf2-memops), and successfully building using said make commands, I get error -22 as well on 5.6.14 on Arch Linux.

@thamma thamma mentioned this issue Jun 3, 2020
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grandchild added a commit to grandchild/gspca-kinect2 that referenced this issue Jun 5, 2020
@grandchild
Fix device_caps error -22 (EINVAL) on Linux 5.4+
a102f7a 
torvalds/linux@3c13505 broke this driver, requiring the video device's
device_caps be set in advance.

Set the same device caps that are reported from vidioc_querycap().

Fixes yoshimoto#7.
@grandchild grandchild linked a pull request Jun 5, 2020 that will close this issue
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grandchild added a commit to grandchild/gspca-kinect2 that referenced this issue Jun 5, 2020
@grandchild
Fix device_caps error -22 (EINVAL) on Linux 5.4+
33cd75b 
torvalds/linux@3c13505 broke this driver, requiring the video device's
device_caps be set in advance.

Set the same device caps that are reported from vidioc_querycap().

Fixes yoshimoto#7.
@grandchild
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I managed to fix this :)

@BOFH2k BOFH2k mentioned this issue Jun 12, 2020
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@BOFH2k
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BOFH2k commented Jun 12, 2020

I can attest to your branch solving the probe issue.
Could you actually use the webcam then?

@BOFH2k BOFH2k closed this as completed Jun 12, 2020
@grandchild
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Yes. See, again, here and above.

@grandchild
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And maybe leave the issue open, since the PR is not actually merged...

@BOFH2k BOFH2k reopened this Jun 14, 2020
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Fix device_caps error -22 (EINVAL) on Linux 5.4+ grandchild/gspca-kinect2
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@grandchild @thamma @BOFH2k