automation-tests/docs/source/markdown/options/device-cgroup-rule.md

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####> This option file is used in:
####> podman create, run
####> If file is edited, make sure the changes
####> are applicable to all of those.
#### **--device-cgroup-rule**=*"type major:minor mode"*
Add a rule to the cgroup allowed devices list. The rule is expected to be in the format specified in the Linux kernel documentation (Documentation/cgroup-v1/devices.txt):
- type: a (all), c (char), or b (block);
- major and minor: either a number, or * for all;
- mode: a composition of r (read), w (write), and m (mknod(2)).