Is it even seeing the camera?

Camera model
Microsoft Lifecam VX 700
What is the problem?
I followed this document from a Chris's Basement video: https://docs.google.com/document/d/1AqtBhPTZOei1bds82Q2bN_Hy5QSHhvsh3vqAmPzSiJo/edit
When I try to test mjpg streamer I get a list of errors about pan, tilt, focus, etc. that I don't know the relevance of. When I look at the Control tab in OctoPrint the video window says "Webcam stream not loaded."
What did you already try to solve it?
Nothing. I'm not sure what to do or where to look
Logs (/var/log/webcamd.log, syslog, dmesg, ... no logs, no support)

When I try to test mjpg streamer:

~/mjpg-streamer/mjpg-streamer-experimental$ sudo ./mjpg_streamer -i "./input_uvc.so" -o "./output_http.so"
MJPG Streamer Version: git rev: 85f89a8c321e799fabb1693c5d133f3fb48ee748
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 640 x 480
 i: Frames Per Second.: -1
 i: Format............: JPEG
 i: TV-Norm...........: DEFAULT
UVCIOC_CTRL_ADD - Error at Pan (relative): Inappropriate ioctl for device (25)
UVCIOC_CTRL_ADD - Error at Tilt (relative): Inappropriate ioctl for device (25)
UVCIOC_CTRL_ADD - Error at Pan Reset: Inappropriate ioctl for device (25)
UVCIOC_CTRL_ADD - Error at Tilt Reset: Inappropriate ioctl for device (25)
UVCIOC_CTRL_ADD - Error at Pan/tilt Reset: Inappropriate ioctl for device (25)
UVCIOC_CTRL_ADD - Error at Focus (absolute): Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Pan (relative): Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Tilt (relative): Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Pan Reset: Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Tilt Reset: Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Pan/tilt Reset: Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Focus (absolute): Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at LED1 Mode: Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at LED1 Frequency: Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Disable video processing: Inappropriate ioctl for device (25)
UVCIOC_CTRL_MAP - Error at Raw bits per pixel: Inappropriate ioctl for device (25)
 o: www-folder-path......: disabled
 o: HTTP TCP port........: 8080
 o: HTTP Listen Address..: (null)
 o: username:password....: disabled
 o: commands.............: enabled
^Csetting signal to stop
 i: cleaning up resources allocated by input thread
force cancellation of threads and cleanup resources
 o: cleaning up resources allocated by server thread #00
done

This is what octoprint.log shows. I do not have a webcamd log or anything like that.

2020-11-30 08:17:35,946 - octoprint.startup - INFO - ******************************************************************************
2020-11-30 08:17:35,964 - octoprint.startup - INFO - Starting OctoPrint 1.4.2
2020-11-30 08:17:35,966 - octoprint.startup - INFO - ******************************************************************************
(SNIP)
2020-11-30 17:32:43,592 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-30 17:33:58,285 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 33376}
2020-11-30 17:44:10,129 - octoprint.server.util.flask - INFO - Passively logging in user joe from 192.168.5.226
2020-11-30 17:44:10,133 - octoprint.access.users - INFO - Logged in user: joe
2020-11-30 17:44:13,571 - octoprint.plugins.announcements - INFO - Loaded channel _important from https://octoprint.org/feeds/important.xml in 0.55s
2020-11-30 17:44:14,801 - octoprint.plugins.announcements - INFO - Loaded channel _releases from https://octoprint.org/feeds/releases.xml in 0.91s
2020-11-30 17:44:15,611 - octoprint.plugins.announcements - INFO - Loaded channel _blog from https://octoprint.org/feeds/octoblog.xml in 0.71s
2020-11-30 17:44:16,434 - octoprint.plugins.announcements - INFO - Loaded channel _plugins from https://plugins.octoprint.org/feed.xml in 0.73s
2020-11-30 17:44:17,161 - octoprint.plugins.announcements - INFO - Loaded channel _octopi from https://octoprint.org/feeds/octopi.xml in 0.55s
2020-11-30 17:44:18,431 - octoprint.plugins.pluginmanager - INFO - Loaded plugin notices data from https://plugins.octoprint.org/notices.json
2020-11-30 17:44:18,874 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606779861587 (192.168.5.226) 18.60ms
2020-11-30 17:44:18,938 - octoprint.server.util.sockjs - INFO - User joe logged in on the socket from client 192.168.5.226
2020-11-30 17:45:03,373 - tornado.access - WARNING - 404 GET /webcam/?action=stream (192.168.5.226) 20.09ms
2020-11-30 17:46:23,246 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606779986987 (192.168.5.226) 20.98ms
2020-11-30 17:46:43,319 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606780007045 (192.168.5.226) 23.63ms
2020-11-30 17:47:43,595 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-30 17:48:57,983 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 34276}
2020-11-30 17:51:16,458 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606780280151 (192.168.5.226) 22.56ms
2020-11-30 17:51:51,747 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606780315420 (192.168.5.226) 20.01ms
2020-11-30 17:52:29,849 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606780353700 (192.168.5.226) 30.40ms
2020-11-30 17:56:45,037 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606780608921 (192.168.5.226) 26.30ms
2020-11-30 17:56:47,462 - octoprint.server.util.sockjs - INFO - Client connection closed: 192.168.5.226
2020-11-30 18:02:43,599 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-30 18:03:58,125 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 35176}
2020-11-30 19:48:52,176 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606787336178 (192.168.5.226) 24.97ms
2020-11-30 19:48:57,480 - tornado.access - WARNING - 404 GET /webcam/?action=stream (192.168.5.226) 24.98ms
2020-11-30 19:48:57,820 - tornado.access - WARNING - 404 GET /favicon.ico (192.168.5.226) 26.70ms
2020-11-30 19:48:58,017 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 41476}
2020-11-30 19:49:07,980 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606787352063 (192.168.5.226) 25.21ms
2020-11-30 19:49:35,380 - tornado.access - WARNING - 404 GET /webcam/?action=stream&1606787379134 (192.168.5.226) 21.47ms
2020-11-30 20:02:43,628 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-30 20:03:58,153 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 42376}
2020-11-30 20:17:43,633 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-11-30 20:18:58,060 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 43276}

Additional information about your setup (OctoPrint version, OctoPi version, ...)
Linux Mint on a Dell Latitude 2100 running Octoprint 1.4.2