Update cheatsheets

linux/uvcdynctrl

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# uvcdynctrl
+
+> A libwebcam command-line tool to manage dynamic controls in uvcvideo.
+> More information: <https://manned.org/uvcdynctrl>.
+
+- List all available cameras:
+
+`uvcdynctrl -l`
+
+- Use a specific device (defaults to `video0`):
+
+`uvcdynctrl -d {{device_name}}`
+
+- List available controls:
+
+`uvcdynctrl -c`
+
+- Set a new control value (for negative values, use `-- -value`):
+
+`uvcdynctrl -s {{control_name}} {{value}}`
+
+- Get the current control value:
+
+`uvcdynctrl -g {{control_name}}`
+
+- Save the state of the current controls to a file:
+
+`uvcdynctrl -W {{filename}}`
+
+- Load the state of the controls from a file:
+
+`uvcdynctrl -L {{filename}}`